cheng/zlib
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Improve the detection of no hidden visibility attribute.

Browse Source
This commit is contained in:
Mark Adler 2012-02-19 23:31:55 -08:00
parent e6d2a8471b
commit 3f4339b61b
3 changed files with 16 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
configure vendored
View File

@ -136,6 +136,18 @@ else
}
fi
tryboth()
{
show $*
got=`( $* ) 2>&1`
ret=$?
printf %s "$got" >> configure.log
if test $ret -ne 0; then
return $ret
fi
test "$got" = ""
}
echo >> configure.log
cat > $test.c <<EOF
@ -626,7 +638,7 @@ fi
if test "$gcc" -eq 1; then
echo >> configure.log
cat > $test.c <<EOF
#if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33)
#if ((__GNUC__-0) * 100 + __GNUC_MINOR__-0 >= 303)
# define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
#else
# define ZLIB_INTERNAL
@ -637,7 +649,7 @@ int main()
return 0;
}
EOF
if try $CC -c $CFLAGS $test.c; then
if tryboth $CC -c $CFLAGS $test.c; then
echo "Checking for attribute(visibility) support... Yes." | tee -a configure.log
else
CFLAGS="$CFLAGS -DNO_VIZ"

3
gzguts.h
View File

@ -12,8 +12,7 @@
# endif
#endif
#define GCC_VER ((__GNUC__-0) * 100 + __GNUC_MINOR__-0)
#if ((GCC_VER >= 303 && !defined(__APPLE__)) || GCC_VER >= 400) && !defined(NO_VIZ)
#if ((__GNUC__-0) * 100 + __GNUC_MINOR__-0) >= 303 && !defined(NO_VIZ)
# define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
#else
# define ZLIB_INTERNAL

3
zutil.h
View File

@ -13,8 +13,7 @@
#ifndef ZUTIL_H
#define ZUTIL_H
#define GCC_VER ((__GNUC__-0) * 100 + __GNUC_MINOR__-0)
#if ((GCC_VER >= 303 && !defined(__APPLE__)) || GCC_VER >= 400) && !defined(NO_VIZ)
#if ((__GNUC__-0) * 100 + __GNUC_MINOR__-0) >= 303 && !defined(NO_VIZ)
# define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
#else
# define ZLIB_INTERNAL