533 lines
18 KiB
Plaintext
533 lines
18 KiB
Plaintext
dnl ---------------------------------------------------------------------------
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dnl Message output
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dnl ---------------------------------------------------------------------------
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AC_DEFUN([LOC_MSG],[echo "$1"])
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dnl ---------------------------------------------------------------------------
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dnl Available from the GNU Autoconf Macro Archive at:
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dnl http://www.gnu.org/software/ac-archive/htmldoc/vl_prog_cc_warnings.html
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dnl ---------------------------------------------------------------------------
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AC_DEFUN([VL_PROG_CC_WARNINGS], [
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ansi=$1
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if test -z "$ansi"; then
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msg="for C compiler warning flags"
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else
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msg="for C compiler warning and ANSI conformance flags"
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fi
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AC_CACHE_CHECK($msg, vl_cv_prog_cc_warnings, [
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if test -n "$CC"; then
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cat > conftest.c <<EOF
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int main(int argc, char **argv) { return 0; }
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EOF
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dnl GCC
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if test "$GCC" = "yes"; then
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if test -z "$ansi"; then
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vl_cv_prog_cc_warnings="-Wall"
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else
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vl_cv_prog_cc_warnings="-Wall -ansi -pedantic"
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fi
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dnl Most compilers print some kind of a version string with some command
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dnl line options (often "-V"). The version string should be checked
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dnl before doing a test compilation run with compiler-specific flags.
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dnl This is because some compilers (like the Cray compiler) only
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dnl produce a warning message for unknown flags instead of returning
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dnl an error, resulting in a false positive. Also, compilers may do
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dnl erratic things when invoked with flags meant for a different
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dnl compiler.
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dnl Solaris C compiler
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elif $CC -V 2>&1 | grep -i "WorkShop" > /dev/null 2>&1 &&
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$CC -c -v -Xc conftest.c > /dev/null 2>&1 &&
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test -f conftest.o; then
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if test -z "$ansi"; then
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vl_cv_prog_cc_warnings="-v"
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else
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vl_cv_prog_cc_warnings="-v -Xc"
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fi
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dnl Digital Unix C compiler
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elif $CC -V 2>&1 | grep -i "Digital UNIX Compiler" > /dev/null 2>&1 &&
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$CC -c -verbose -w0 -warnprotos -std1 conftest.c > /dev/null 2>&1 &&
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test -f conftest.o; then
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if test -z "$ansi"; then
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vl_cv_prog_cc_warnings="-verbose -w0 -warnprotos"
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else
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vl_cv_prog_cc_warnings="-verbose -w0 -warnprotos -std1"
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fi
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dnl C for AIX Compiler
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elif $CC 2>&1 | grep -i "C for AIX Compiler" > /dev/null 2>&1 &&
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$CC -c -qlanglvl=ansi -qinfo=all conftest.c > /dev/null 2>&1 &&
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test -f conftest.o; then
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if test -z "$ansi"; then
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vl_cv_prog_cc_warnings="-qsrcmsg -qinfo=all:noppt:noppc:noobs:nocnd"
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else
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vl_cv_prog_cc_warnings="-qsrcmsg -qinfo=all:noppt:noppc:noobs:nocnd -qlanglvl=ansi"
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fi
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dnl IRIX C compiler
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elif $CC -version 2>&1 | grep -i "MIPSpro Compilers" > /dev/null 2>&1 &&
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$CC -c -fullwarn -ansi -ansiE conftest.c > /dev/null 2>&1 &&
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test -f conftest.o; then
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if test -z "$ansi"; then
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vl_cv_prog_cc_warnings="-fullwarn"
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else
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vl_cv_prog_cc_warnings="-fullwarn -ansi -ansiE"
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fi
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dnl HP-UX C compiler
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elif what $CC 2>&1 | grep -i "HP C Compiler" > /dev/null 2>&1 &&
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$CC -c -Aa +w1 conftest.c > /dev/null 2>&1 &&
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test -f conftest.o; then
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if test -z "$ansi"; then
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vl_cv_prog_cc_warnings="+w1"
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else
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vl_cv_prog_cc_warnings="+w1 -Aa"
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fi
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dnl The NEC SX-5 (Super-UX 10) C compiler
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elif $CC -V 2>&1 | grep "/SX" > /dev/null 2>&1 &&
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$CC -c -pvctl[,]fullmsg -Xc conftest.c > /dev/null 2>&1 &&
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test -f conftest.o; then
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if test -z "$ansi"; then
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vl_cv_prog_cc_warnings="-pvctl[,]fullmsg"
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else
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vl_cv_prog_cc_warnings="-pvctl[,]fullmsg -Xc"
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fi
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dnl The Cray C compiler (Unicos)
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elif $CC -V 2>&1 | grep -i "Cray" > /dev/null 2>&1 &&
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$CC -c -h msglevel 2 conftest.c > /dev/null 2>&1 &&
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test -f conftest.o; then
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if test -z "$ansi"; then
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vl_cv_prog_cc_warnings="-h msglevel 2"
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else
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vl_cv_prog_cc_warnings="-h msglevel 2 -h conform"
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fi
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fi
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rm -f conftest.*
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fi
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if test -n "$vl_cv_prog_cc_warnings"; then
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CFLAGS="$CFLAGS $vl_cv_prog_cc_warnings"
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else
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vl_cv_prog_cc_warnings="unknown"
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fi
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])
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])dnl
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dnl ---------------------------------------------------------------------------
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dnl Available from the GNU Autoconf Macro Archive at:
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dnl http://www.gnu.org/software/ac-archive/ax_check_gl.html
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dnl ---------------------------------------------------------------------------
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AC_DEFUN([AX_CHECK_GL],
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[AC_REQUIRE([AC_PATH_X])dnl
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AC_REQUIRE([ACX_PTHREAD])dnl
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#
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# There isn't a reliable way to know we should use the Apple OpenGL framework
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# without a configure option. A Mac OS X user may have installed an
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# alternative GL implementation (e.g., Mesa), which may or may not depend on X.
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#
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AC_ARG_WITH([apple-opengl-framework],
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[AC_HELP_STRING([--with-apple-opengl-framework],
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[use Apple OpenGL framework (Mac OS X only)])])
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if test "X$with_apple_opengl_framework" = "Xyes"; then
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AC_DEFINE([HAVE_APPLE_OPENGL_FRAMEWORK], [1],
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[Use the Apple OpenGL framework.])
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GL_LIBS="-framework OpenGL"
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else
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AC_LANG_PUSH(C)
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AX_LANG_COMPILER_MS
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if test X$ax_compiler_ms = Xno; then
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GL_CFLAGS="${PTHREAD_CFLAGS}"
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GL_LIBS="${PTHREAD_LIBS} -lm"
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fi
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#
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# Use x_includes and x_libraries if they have been set (presumably by
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# AC_PATH_X).
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#
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if test "X$no_x" != "Xyes"; then
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if test -n "$x_includes"; then
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GL_CFLAGS="-I${x_includes} ${GL_CFLAGS}"
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fi
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if test -n "$x_libraries"; then
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GL_LIBS="-L${x_libraries} -lX11 ${GL_LIBS}"
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fi
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fi
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AC_CHECK_HEADERS([windows.h])
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AC_CACHE_CHECK([for OpenGL library], [ax_cv_check_gl_libgl],
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[ax_cv_check_gl_libgl="no"
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ax_save_CPPFLAGS="${CPPFLAGS}"
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CPPFLAGS="${GL_CFLAGS} ${CPPFLAGS}"
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ax_save_LIBS="${LIBS}"
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LIBS=""
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ax_check_libs="-lopengl32 -lGL"
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for ax_lib in ${ax_check_libs}; do
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if test X$ax_compiler_ms = Xyes; then
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ax_try_lib=`echo $ax_lib | sed -e 's/^-l//' -e 's/$/.lib/'`
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else
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ax_try_lib="${ax_lib}"
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fi
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LIBS="${ax_try_lib} ${GL_LIBS} ${ax_save_LIBS}"
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AC_LINK_IFELSE(
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[AC_LANG_PROGRAM([[
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# if HAVE_WINDOWS_H && defined(_WIN32)
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# include <windows.h>
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# endif
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# include <GL/gl.h>]],
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[[glBegin(0)]])],
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[ax_cv_check_gl_libgl="${ax_try_lib}"; break])
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done
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LIBS=${ax_save_LIBS}
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CPPFLAGS=${ax_save_CPPFLAGS}])
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if test "X${ax_cv_check_gl_libgl}" = "Xno"; then
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no_gl="yes"
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GL_CFLAGS=""
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GL_LIBS=""
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else
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GL_LIBS="${ax_cv_check_gl_libgl} ${GL_LIBS}"
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fi
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AC_LANG_POP(C)
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fi
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AC_SUBST([GL_CFLAGS])
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AC_SUBST([GL_LIBS])
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])dnl
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dnl ---------------------------------------------------------------------------
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dnl Available from the GNU Autoconf Macro Archive at:
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dnl http://www.gnu.org/software/ac-archive/ax_check_glu.html
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dnl ---------------------------------------------------------------------------
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AC_DEFUN([AX_CHECK_GLU],
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[AC_REQUIRE([AX_CHECK_GL])dnl
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AC_REQUIRE([AC_PROG_CXX])dnl
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GLU_CFLAGS="${GL_CFLAGS}"
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if test "X${with_apple_opengl_framework}" != "Xyes"; then
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AC_CACHE_CHECK([for OpenGL Utility library], [ax_cv_check_glu_libglu],
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[ax_cv_check_glu_libglu="no"
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ax_save_CPPFLAGS="${CPPFLAGS}"
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CPPFLAGS="${GL_CFLAGS} ${CPPFLAGS}"
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ax_save_LIBS="${LIBS}"
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LIBS=""
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ax_check_libs="-lglu32 -lGLU"
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for ax_lib in ${ax_check_libs}; do
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if test X$ax_compiler_ms = Xyes; then
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ax_try_lib=`echo $ax_lib | sed -e 's/^-l//' -e 's/$/.lib/'`
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else
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ax_try_lib="${ax_lib}"
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fi
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LIBS="${ax_try_lib} ${GL_LIBS} ${ax_save_LIBS}"
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#
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# libGLU typically links with libstdc++ on POSIX platforms. However,
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# setting the language to C++ means that test program source is named
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# "conftest.cc"; and Microsoft cl doesn't know what to do with such a
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# file.
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#
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AC_LANG_PUSH([C++])
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if test X$ax_compiler_ms = Xyes; then
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AC_LANG_PUSH([C])
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fi
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AC_LINK_IFELSE(
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[AC_LANG_PROGRAM([[
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# if HAVE_WINDOWS_H && defined(_WIN32)
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# include <windows.h>
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# endif
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# include <GL/glu.h>]],
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[[gluBeginCurve(0)]])],
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[ax_cv_check_glu_libglu="${ax_try_lib}"; break])
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if test X$ax_compiler_ms = Xyes; then
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AC_LANG_POP([C])
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fi
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AC_LANG_POP([C++])
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done
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LIBS=${ax_save_LIBS}
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CPPFLAGS=${ax_save_CPPFLAGS}])
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if test "X${ax_cv_check_glu_libglu}" = "Xno"; then
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no_glu="yes"
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GLU_CFLAGS=""
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GLU_LIBS=""
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else
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GLU_LIBS="${ax_cv_check_glu_libglu} ${GL_LIBS}"
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fi
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fi
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AC_SUBST([GLU_CFLAGS])
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AC_SUBST([GLU_LIBS])
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])
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dnl ---------------------------------------------------------------------------
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dnl Available from the GNU Autoconf Macro Archive at:
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dnl http://www.gnu.org/software/ac-archive/ax_check_glut.html
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dnl ---------------------------------------------------------------------------
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AC_DEFUN([AX_CHECK_GLUT],
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[AC_REQUIRE([AX_CHECK_GLU])dnl
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AC_REQUIRE([AC_PATH_XTRA])dnl
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if test "X$with_apple_opengl_framework" = "Xyes"; then
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GLUT_CFLAGS="${GLU_CFLAGS}"
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GLUT_LIBS="-framework GLUT -lobjc ${GL_LIBS}"
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else
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GLUT_CFLAGS=${GLU_CFLAGS}
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GLUT_LIBS=${GLU_LIBS}
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#
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# If X is present, assume GLUT depends on it.
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#
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if test "X${no_x}" != "Xyes"; then
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GLUT_LIBS="${X_PRE_LIBS} -lXmu -lXi ${X_EXTRA_LIBS} ${GLUT_LIBS}"
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fi
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AC_LANG_PUSH(C)
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ax_save_CPPFLAGS="${CPPFLAGS}"
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CPPFLAGS="${GLUT_CFLAGS} ${CPPFLAGS}"
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AC_CACHE_CHECK([for GLUT library], [ax_cv_check_glut_libglut],
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[ax_cv_check_glut_libglut="no"
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ax_save_LIBS="${LIBS}"
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LIBS=""
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ax_check_libs="-lglut32 -lglut"
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for ax_lib in ${ax_check_libs}; do
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if test X$ax_compiler_ms = Xyes; then
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ax_try_lib=`echo $ax_lib | sed -e 's/^-l//' -e 's/$/.lib/'`
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else
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ax_try_lib="${ax_lib}"
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fi
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LIBS="${ax_try_lib} ${GLUT_LIBS} ${ax_save_LIBS}"
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AC_LINK_IFELSE(
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[AC_LANG_PROGRAM([[
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# if HAVE_WINDOWS_H && defined(_WIN32)
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# include <windows.h>
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# endif
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# include <GL/glut.h>]],
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[[glutMainLoop()]])],
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[ax_cv_check_glut_libglut="${ax_try_lib}"; break])
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done
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LIBS=${ax_save_LIBS}
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])
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CPPFLAGS="${ax_save_CPPFLAGS}"
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AC_LANG_POP(C)
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if test "X${ax_cv_check_glut_libglut}" = "Xno"; then
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no_glut="yes"
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GLUT_CFLAGS=""
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GLUT_LIBS=""
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else
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GLUT_LIBS="${ax_cv_check_glut_libglut} ${GLUT_LIBS}"
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fi
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fi
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AC_SUBST([GLUT_CFLAGS])
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AC_SUBST([GLUT_LIBS])
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])dnl
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dnl ---------------------------------------------------------------------------
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dnl Available from the GNU Autoconf Macro Archive at:
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dnl http://www.gnu.org/software/ac-archive/htmldoc/acx_pthread.html
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dnl ---------------------------------------------------------------------------
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AC_DEFUN([ACX_PTHREAD], [
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AC_REQUIRE([AC_CANONICAL_HOST])
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AC_LANG_SAVE
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AC_LANG_C
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acx_pthread_ok=no
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# We used to check for pthread.h first, but this fails if pthread.h
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# requires special compiler flags (e.g. on True64 or Sequent).
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# It gets checked for in the link test anyway.
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# First of all, check if the user has set any of the PTHREAD_LIBS,
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# etcetera environment variables, and if threads linking works using
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# them:
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if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
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save_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
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save_LIBS="$LIBS"
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LIBS="$PTHREAD_LIBS $LIBS"
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AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS])
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AC_TRY_LINK_FUNC(pthread_join, acx_pthread_ok=yes)
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AC_MSG_RESULT($acx_pthread_ok)
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if test x"$acx_pthread_ok" = xno; then
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PTHREAD_LIBS=""
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PTHREAD_CFLAGS=""
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fi
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LIBS="$save_LIBS"
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CFLAGS="$save_CFLAGS"
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fi
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# We must check for the threads library under a number of different
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# names; the ordering is very important because some systems
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# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
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# libraries is broken (non-POSIX).
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# Create a list of thread flags to try. Items starting with a "-" are
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# C compiler flags, and other items are library names, except for "none"
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# which indicates that we try without any flags at all, and "pthread-config"
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# which is a program returning the flags for the Pth emulation library.
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acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
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# The ordering *is* (sometimes) important. Some notes on the
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# individual items follow:
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# pthreads: AIX (must check this before -lpthread)
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# none: in case threads are in libc; should be tried before -Kthread and
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# other compiler flags to prevent continual compiler warnings
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# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
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# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
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# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
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# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
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# -pthreads: Solaris/gcc
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# -mthreads: Mingw32/gcc, Lynx/gcc
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# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
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# doesn't hurt to check since this sometimes defines pthreads too;
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# also defines -D_REENTRANT)
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# pthread: Linux, etcetera
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# --thread-safe: KAI C++
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# pthread-config: use pthread-config program (for GNU Pth library)
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case "${host_cpu}-${host_os}" in
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*solaris*)
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# On Solaris (at least, for some versions), libc contains stubbed
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# (non-functional) versions of the pthreads routines, so link-based
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# tests will erroneously succeed. (We need to link with -pthread or
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# -lpthread.) (The stubs are missing pthread_cleanup_push, or rather
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# a function called by this macro, so we could check for that, but
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# who knows whether they'll stub that too in a future libc.) So,
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# we'll just look for -pthreads and -lpthread first:
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acx_pthread_flags="-pthread -pthreads pthread -mt $acx_pthread_flags"
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;;
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esac
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if test x"$acx_pthread_ok" = xno; then
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for flag in $acx_pthread_flags; do
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case $flag in
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none)
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AC_MSG_CHECKING([whether pthreads work without any flags])
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;;
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-*)
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AC_MSG_CHECKING([whether pthreads work with $flag])
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PTHREAD_CFLAGS="$flag"
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;;
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pthread-config)
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AC_CHECK_PROG(acx_pthread_config, pthread-config, yes, no)
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if test x"$acx_pthread_config" = xno; then continue; fi
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PTHREAD_CFLAGS="`pthread-config --cflags`"
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PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
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;;
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*)
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AC_MSG_CHECKING([for the pthreads library -l$flag])
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PTHREAD_LIBS="-l$flag"
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;;
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esac
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save_LIBS="$LIBS"
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save_CFLAGS="$CFLAGS"
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LIBS="$PTHREAD_LIBS $LIBS"
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CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
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# Check for various functions. We must include pthread.h,
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# since some functions may be macros. (On the Sequent, we
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# need a special flag -Kthread to make this header compile.)
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# We check for pthread_join because it is in -lpthread on IRIX
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# while pthread_create is in libc. We check for pthread_attr_init
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# due to DEC craziness with -lpthreads. We check for
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# pthread_cleanup_push because it is one of the few pthread
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# functions on Solaris that doesn't have a non-functional libc stub.
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# We try pthread_create on general principles.
|
|
AC_TRY_LINK([#include <pthread.h>],
|
|
[pthread_t th; pthread_join(th, 0);
|
|
pthread_attr_init(0); pthread_cleanup_push(0, 0);
|
|
pthread_create(0,0,0,0); pthread_cleanup_pop(0); ],
|
|
[acx_pthread_ok=yes])
|
|
|
|
LIBS="$save_LIBS"
|
|
CFLAGS="$save_CFLAGS"
|
|
|
|
AC_MSG_RESULT($acx_pthread_ok)
|
|
if test "x$acx_pthread_ok" = xyes; then
|
|
break;
|
|
fi
|
|
|
|
PTHREAD_LIBS=""
|
|
PTHREAD_CFLAGS=""
|
|
done
|
|
fi
|
|
|
|
# Various other checks:
|
|
if test "x$acx_pthread_ok" = xyes; then
|
|
save_LIBS="$LIBS"
|
|
LIBS="$PTHREAD_LIBS $LIBS"
|
|
save_CFLAGS="$CFLAGS"
|
|
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
|
|
|
|
# Detect AIX lossage: threads are created detached by default
|
|
# and the JOINABLE attribute has a nonstandard name (UNDETACHED).
|
|
AC_MSG_CHECKING([for joinable pthread attribute])
|
|
AC_TRY_LINK([#include <pthread.h>],
|
|
[int attr=PTHREAD_CREATE_JOINABLE;],
|
|
ok=PTHREAD_CREATE_JOINABLE, ok=unknown)
|
|
if test x"$ok" = xunknown; then
|
|
AC_TRY_LINK([#include <pthread.h>],
|
|
[int attr=PTHREAD_CREATE_UNDETACHED;],
|
|
ok=PTHREAD_CREATE_UNDETACHED, ok=unknown)
|
|
fi
|
|
if test x"$ok" != xPTHREAD_CREATE_JOINABLE; then
|
|
AC_DEFINE(PTHREAD_CREATE_JOINABLE, $ok,
|
|
[Define to the necessary symbol if this constant
|
|
uses a non-standard name on your system.])
|
|
fi
|
|
AC_MSG_RESULT(${ok})
|
|
if test x"$ok" = xunknown; then
|
|
AC_MSG_WARN([we do not know how to create joinable pthreads])
|
|
fi
|
|
|
|
AC_MSG_CHECKING([if more special flags are required for pthreads])
|
|
flag=no
|
|
case "${host_cpu}-${host_os}" in
|
|
*-aix* | *-freebsd* | *-darwin*) flag="-D_THREAD_SAFE";;
|
|
*solaris* | *-osf* | *-hpux*) flag="-D_REENTRANT";;
|
|
esac
|
|
AC_MSG_RESULT(${flag})
|
|
if test "x$flag" != xno; then
|
|
PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
|
|
fi
|
|
|
|
LIBS="$save_LIBS"
|
|
CFLAGS="$save_CFLAGS"
|
|
|
|
# More AIX lossage: must compile with cc_r
|
|
AC_CHECK_PROG(PTHREAD_CC, cc_r, cc_r, ${CC})
|
|
else
|
|
PTHREAD_CC="$CC"
|
|
fi
|
|
|
|
AC_SUBST(PTHREAD_LIBS)
|
|
AC_SUBST(PTHREAD_CFLAGS)
|
|
AC_SUBST(PTHREAD_CC)
|
|
|
|
# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
|
|
if test x"$acx_pthread_ok" = xyes; then
|
|
ifelse([$1],,AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.]),[$1])
|
|
:
|
|
else
|
|
acx_pthread_ok=no
|
|
$2
|
|
fi
|
|
AC_LANG_RESTORE
|
|
])dnl ACX_PTHREAD
|