From 55d98b4c302c74b619968bd02cf3b5e18d845977 Mon Sep 17 00:00:00 2001 From: Mark Adler Date: Sun, 2 Aug 2015 14:46:58 -0700 Subject: [PATCH] Allow building zlib outside of the source directory. To build, simply run configure from the source directory by specifying its path. That path will be used to find the source files. The source directory will not be touched. All new and modified files will be made in the current directory. Discovered in the process that not all makes understand % or $<, and not all compilers understand -include or -I-. This required a larger Makefile.in with explicit dependencies. --- Makefile.in | 217 ++++++++++++++++++++++++++++++++++++++++------------ configure | 37 ++++++--- 2 files changed, 195 insertions(+), 59 deletions(-) diff --git a/Makefile.in b/Makefile.in index f608c6c..7408644 100644 --- a/Makefile.in +++ b/Makefile.in @@ -53,6 +53,9 @@ includedir = ${prefix}/include mandir = ${prefix}/share/man man3dir = ${mandir}/man3 pkgconfigdir = ${libdir}/pkgconfig +SRCDIR= +ZINC= +ZINCOUT=-I. OBJZ = adler32.o crc32.o deflate.o infback.o inffast.o inflate.o inftrees.o trees.o zutil.o OBJG = compress.o uncompr.o gzclose.o gzlib.o gzread.o gzwrite.o @@ -113,8 +116,8 @@ test64: all64 fi; \ rm -f $$TMP64 -infcover.o: test/infcover.c zlib.h zconf.h - $(CC) $(CFLAGS) -I. -c -o $@ test/infcover.c +infcover.o: $(SRCDIR)test/infcover.c $(SRCDIR)zlib.h zconf.h + $(CC) $(CFLAGS) $(ZINCOUT) -c -o $@ $(SRCDIR)test/infcover.c infcover: infcover.o libz.a $(CC) $(CFLAGS) -o $@ infcover.o libz.a @@ -140,24 +143,140 @@ match.lo: match.S mv _match.o match.lo rm -f _match.s -example.o: test/example.c zlib.h zconf.h - $(CC) $(CFLAGS) -I. -c -o $@ test/example.c +example.o: $(SRCDIR)test/example.c $(SRCDIR)zlib.h zconf.h + $(CC) $(CFLAGS) $(ZINCOUT) -c -o $@ $(SRCDIR)test/example.c -minigzip.o: test/minigzip.c zlib.h zconf.h - $(CC) $(CFLAGS) -I. -c -o $@ test/minigzip.c +minigzip.o: $(SRCDIR)test/minigzip.c $(SRCDIR)zlib.h zconf.h + $(CC) $(CFLAGS) $(ZINCOUT) -c -o $@ $(SRCDIR)test/minigzip.c -example64.o: test/example.c zlib.h zconf.h - $(CC) $(CFLAGS) -I. -D_FILE_OFFSET_BITS=64 -c -o $@ test/example.c +example64.o: $(SRCDIR)test/example.c $(SRCDIR)zlib.h zconf.h + $(CC) $(CFLAGS) $(ZINCOUT) -D_FILE_OFFSET_BITS=64 -c -o $@ $(SRCDIR)test/example.c -minigzip64.o: test/minigzip.c zlib.h zconf.h - $(CC) $(CFLAGS) -I. -D_FILE_OFFSET_BITS=64 -c -o $@ test/minigzip.c +minigzip64.o: $(SRCDIR)test/minigzip.c $(SRCDIR)zlib.h zconf.h + $(CC) $(CFLAGS) $(ZINCOUT) -D_FILE_OFFSET_BITS=64 -c -o $@ $(SRCDIR)test/minigzip.c -.SUFFIXES: .lo -.c.lo: +adler32.o: $(SRCDIR)adler32.c + $(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)adler32.c + +crc32.o: $(SRCDIR)crc32.c + $(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)crc32.c + +deflate.o: $(SRCDIR)deflate.c + $(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)deflate.c + +infback.o: $(SRCDIR)infback.c + $(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)infback.c + +inffast.o: $(SRCDIR)inffast.c + $(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)inffast.c + +inflate.o: $(SRCDIR)inflate.c + $(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)inflate.c + +inftrees.o: $(SRCDIR)inftrees.c + $(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)inftrees.c + +trees.o: $(SRCDIR)trees.c + $(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)trees.c + +zutil.o: $(SRCDIR)zutil.c + $(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)zutil.c + +compress.o: $(SRCDIR)compress.c + $(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)compress.c + +uncompr.o: $(SRCDIR)uncompr.c + $(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)uncompr.c + +gzclose.o: $(SRCDIR)gzclose.c + $(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)gzclose.c + +gzlib.o: $(SRCDIR)gzlib.c + $(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)gzlib.c + +gzread.o: $(SRCDIR)gzread.c + $(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)gzread.c + +gzwrite.o: $(SRCDIR)gzwrite.c + $(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)gzwrite.c + + +adler32.lo: $(SRCDIR)adler32.c -@mkdir objs 2>/dev/null || test -d objs - $(CC) $(SFLAGS) -DPIC -c -o objs/$*.o $< - -@mv objs/$*.o $@ + $(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/adler32.o $(SRCDIR)adler32.c + -@mv objs/adler32.o $@ + +crc32.lo: $(SRCDIR)crc32.c + -@mkdir objs 2>/dev/null || test -d objs + $(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/crc32.o $(SRCDIR)crc32.c + -@mv objs/crc32.o $@ + +deflate.lo: $(SRCDIR)deflate.c + -@mkdir objs 2>/dev/null || test -d objs + $(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/deflate.o $(SRCDIR)deflate.c + -@mv objs/deflate.o $@ + +infback.lo: $(SRCDIR)infback.c + -@mkdir objs 2>/dev/null || test -d objs + $(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/infback.o $(SRCDIR)infback.c + -@mv objs/infback.o $@ + +inffast.lo: $(SRCDIR)inffast.c + -@mkdir objs 2>/dev/null || test -d objs + $(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/inffast.o $(SRCDIR)inffast.c + -@mv objs/inffast.o $@ + +inflate.lo: $(SRCDIR)inflate.c + -@mkdir objs 2>/dev/null || test -d objs + $(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/inflate.o $(SRCDIR)inflate.c + -@mv objs/inflate.o $@ + +inftrees.lo: $(SRCDIR)inftrees.c + -@mkdir objs 2>/dev/null || test -d objs + $(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/inftrees.o $(SRCDIR)inftrees.c + -@mv objs/inftrees.o $@ + +trees.lo: $(SRCDIR)trees.c + -@mkdir objs 2>/dev/null || test -d objs + $(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/trees.o $(SRCDIR)trees.c + -@mv objs/trees.o $@ + +zutil.lo: $(SRCDIR)zutil.c + -@mkdir objs 2>/dev/null || test -d objs + $(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/zutil.o $(SRCDIR)zutil.c + -@mv objs/zutil.o $@ + +compress.lo: $(SRCDIR)compress.c + -@mkdir objs 2>/dev/null || test -d objs + $(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/compress.o $(SRCDIR)compress.c + -@mv objs/compress.o $@ + +uncompr.lo: $(SRCDIR)uncompr.c + -@mkdir objs 2>/dev/null || test -d objs + $(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/uncompr.o $(SRCDIR)uncompr.c + -@mv objs/uncompr.o $@ + +gzclose.lo: $(SRCDIR)gzclose.c + -@mkdir objs 2>/dev/null || test -d objs + $(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/gzclose.o $(SRCDIR)gzclose.c + -@mv objs/gzclose.o $@ + +gzlib.lo: $(SRCDIR)gzlib.c + -@mkdir objs 2>/dev/null || test -d objs + $(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/gzlib.o $(SRCDIR)gzlib.c + -@mv objs/gzlib.o $@ + +gzread.lo: $(SRCDIR)gzread.c + -@mkdir objs 2>/dev/null || test -d objs + $(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/gzread.o $(SRCDIR)gzread.c + -@mv objs/gzread.o $@ + +gzwrite.lo: $(SRCDIR)gzwrite.c + -@mkdir objs 2>/dev/null || test -d objs + $(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/gzwrite.o $(SRCDIR)gzwrite.c + -@mv objs/gzwrite.o $@ + placebo $(SHAREDLIBV): $(PIC_OBJS) libz.a $(LDSHARED) $(SFLAGS) -o $@ $(PIC_OBJS) $(LDSHAREDLIBC) $(LDFLAGS) @@ -203,7 +322,7 @@ install-libs: $(LIBS) ln -s $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBM); \ ($(LDCONFIG) || true) >/dev/null 2>&1; \ fi - cp zlib.3 $(DESTDIR)$(man3dir) + cp $(SRCDIR)zlib.3 $(DESTDIR)$(man3dir) chmod 644 $(DESTDIR)$(man3dir)/zlib.3 cp zlib.pc $(DESTDIR)$(pkgconfigdir) chmod 644 $(DESTDIR)$(pkgconfigdir)/zlib.pc @@ -212,7 +331,7 @@ install-libs: $(LIBS) install: install-libs -@if [ ! -d $(DESTDIR)$(includedir) ]; then mkdir -p $(DESTDIR)$(includedir); fi - cp zlib.h zconf.h $(DESTDIR)$(includedir) + cp $(SRCDIR)zlib.h zconf.h $(DESTDIR)$(includedir) chmod 644 $(DESTDIR)$(includedir)/zlib.h $(DESTDIR)$(includedir)/zconf.h uninstall: @@ -226,18 +345,18 @@ uninstall: docs: zlib.3.pdf -zlib.3.pdf: zlib.3 - groff -mandoc -f H -T ps zlib.3 | ps2pdf - zlib.3.pdf +zlib.3.pdf: $(SRCDIR)zlib.3 + groff -mandoc -f H -T ps $(SRCDIR)zlib.3 | ps2pdf - $@ -zconf.h.cmakein: zconf.h.in +zconf.h.cmakein: $(SRCDIR)zconf.h.in -@ TEMPFILE=zconfh_$$; \ echo "/#define ZCONF_H/ a\\\\\n#cmakedefine Z_PREFIX\\\\\n#cmakedefine Z_HAVE_UNISTD_H\n" >> $$TEMPFILE &&\ - sed -f $$TEMPFILE zconf.h.in > zconf.h.cmakein &&\ - touch -r zconf.h.in zconf.h.cmakein &&\ + sed -f $$TEMPFILE $(SRCDIR)zconf.h.in > $@ &&\ + touch -r $(SRCDIR)zconf.h.in $@ &&\ rm $$TEMPFILE -zconf: zconf.h.in - cp -p zconf.h.in zconf.h +zconf: $(SRCDIR)zconf.h.in + cp -p $(SRCDIR)zconf.h.in zconf.h mostlyclean: clean clean: @@ -255,34 +374,32 @@ maintainer-clean: distclean distclean: clean zconf zconf.h.cmakein docs rm -f Makefile zlib.pc configure.log -@rm -f .DS_Store - -@printf 'all:\n\t-@echo "Please use ./configure first. Thank you."\n' > Makefile - -@printf '\ndistclean:\n\tmake -f Makefile.in distclean\n' >> Makefile - -@touch -r Makefile.in Makefile + @if [ -f Makefile.in ]; then \ + printf 'all:\n\t-@echo "Please use ./configure first. Thank you."\n' > Makefile ; \ + printf '\ndistclean:\n\tmake -f Makefile.in distclean\n' >> Makefile ; \ + touch -r $(SRCDIR)Makefile.in Makefile ; fi + @if [ ! -f zconf.h.in ]; then rm -f zconf.h zconf.h.cmakein ; fi + @if [ ! -f zlib.3 ]; then rm -f zlib.3.pdf ; fi tags: - etags *.[ch] + etags $(SRCDIR)*.[ch] -depend: - makedepend -- $(CFLAGS) -- *.[ch] +adler32.o zutil.o: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h +gzclose.o gzlib.o gzread.o gzwrite.o: $(SRCDIR)zlib.h zconf.h $(SRCDIR)gzguts.h +compress.o example.o minigzip.o uncompr.o: $(SRCDIR)zlib.h zconf.h +crc32.o: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)crc32.h +deflate.o: $(SRCDIR)deflate.h $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h +infback.o inflate.o: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)inftrees.h $(SRCDIR)inflate.h $(SRCDIR)inffast.h $(SRCDIR)inffixed.h +inffast.o: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)inftrees.h $(SRCDIR)inflate.h $(SRCDIR)inffast.h +inftrees.o: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)inftrees.h +trees.o: $(SRCDIR)deflate.h $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)trees.h -# DO NOT DELETE THIS LINE -- make depend depends on it. - -adler32.o zutil.o: zutil.h zlib.h zconf.h -gzclose.o gzlib.o gzread.o gzwrite.o: zlib.h zconf.h gzguts.h -compress.o example.o minigzip.o uncompr.o: zlib.h zconf.h -crc32.o: zutil.h zlib.h zconf.h crc32.h -deflate.o: deflate.h zutil.h zlib.h zconf.h -infback.o inflate.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h inffixed.h -inffast.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h -inftrees.o: zutil.h zlib.h zconf.h inftrees.h -trees.o: deflate.h zutil.h zlib.h zconf.h trees.h - -adler32.lo zutil.lo: zutil.h zlib.h zconf.h -gzclose.lo gzlib.lo gzread.lo gzwrite.lo: zlib.h zconf.h gzguts.h -compress.lo example.lo minigzip.lo uncompr.lo: zlib.h zconf.h -crc32.lo: zutil.h zlib.h zconf.h crc32.h -deflate.lo: deflate.h zutil.h zlib.h zconf.h -infback.lo inflate.lo: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h inffixed.h -inffast.lo: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h -inftrees.lo: zutil.h zlib.h zconf.h inftrees.h -trees.lo: deflate.h zutil.h zlib.h zconf.h trees.h +adler32.lo zutil.lo: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h +gzclose.lo gzlib.lo gzread.lo gzwrite.lo: $(SRCDIR)zlib.h zconf.h $(SRCDIR)gzguts.h +compress.lo example.lo minigzip.lo uncompr.lo: $(SRCDIR)zlib.h zconf.h +crc32.lo: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)crc32.h +deflate.lo: $(SRCDIR)deflate.h $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h +infback.lo inflate.lo: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)inftrees.h $(SRCDIR)inflate.h $(SRCDIR)inffast.h $(SRCDIR)inffixed.h +inffast.lo: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)inftrees.h $(SRCDIR)inflate.h $(SRCDIR)inffast.h +inftrees.lo: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)inftrees.h +trees.lo: $(SRCDIR)deflate.h $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)trees.h diff --git a/configure b/configure index b77a8a8..6438438 100755 --- a/configure +++ b/configure @@ -18,6 +18,18 @@ echo -------------------- >> configure.log echo $0 $* >> configure.log date >> configure.log +# get source directory +SRCDIR=`dirname $0` +if test $SRCDIR = "."; then + ZINC="" + ZINCOUT="-I." + SRCDIR="" +else + ZINC='-include zconf.h' + ZINCOUT='-I. -I$(SRCDIR)' + SRCDIR="$SRCDIR/" +fi + # set command prefix for cross-compilation if [ -n "${CHOST}" ]; then uname="`echo "${CHOST}" | sed -e 's/^[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)-.*$/\1/'`" @@ -28,10 +40,10 @@ fi STATICLIB=libz.a # extract zlib version numbers from zlib.h -VER=`sed -n -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h` -VER3=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\\.[0-9]*\).*/\1/p' < zlib.h` -VER2=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\)\\..*/\1/p' < zlib.h` -VER1=`sed -n -e '/VERSION "/s/.*"\([0-9]*\)\\..*/\1/p' < zlib.h` +VER=`sed -n -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < ${SRCDIR}zlib.h` +VER3=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\\.[0-9]*\).*/\1/p' < ${SRCDIR}zlib.h` +VER2=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\)\\..*/\1/p' < ${SRCDIR}zlib.h` +VER1=`sed -n -e '/VERSION "/s/.*"\([0-9]*\)\\..*/\1/p' < ${SRCDIR}zlib.h` # establish commands for library building if "${CROSS_PREFIX}ar" --version >/dev/null 2>/dev/null || test $? -lt 126; then @@ -184,9 +196,9 @@ if test "$gcc" -eq 1 && ($cc -c $test.c) >> configure.log 2>&1; then fi case "$uname" in Linux* | linux* | GNU | GNU/* | solaris*) - LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,zlib.map"} ;; + LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,${SRCDIR}zlib.map"} ;; *BSD | *bsd* | DragonFly) - LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,zlib.map"} + LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,${SRCDIR}zlib.map"} LDCONFIG="ldconfig -m" ;; CYGWIN* | Cygwin* | cygwin* | OS/2*) EXE='.exe' ;; @@ -287,6 +299,9 @@ else esac fi fi + if test -n "$ZINC"; then + ZINC='-I- -I. -I$(SRCDIR)' + fi ;; SunOS\ 4*) SFLAGS=${CFLAGS-"-O2 -PIC"} CFLAGS=${CFLAGS-"-O2"} @@ -470,7 +485,7 @@ else fi # copy clean zconf.h for subsequent edits -cp -p zconf.h.in zconf.h +cp -p ${SRCDIR}zconf.h.in zconf.h echo >> configure.log @@ -764,6 +779,7 @@ echo STATICLIB = $STATICLIB >> configure.log echo TEST = $TEST >> configure.log echo VER = $VER >> configure.log echo Z_U4 = $Z_U4 >> configure.log +echo SRCDIR = $SRCDIR >> configure.log echo exec_prefix = $exec_prefix >> configure.log echo includedir = $includedir >> configure.log echo libdir = $libdir >> configure.log @@ -773,7 +789,7 @@ echo sharedlibdir = $sharedlibdir >> configure.log echo uname = $uname >> configure.log # udpate Makefile with the configure results -sed < Makefile.in " +sed < ${SRCDIR}Makefile.in " /^CC *=/s#=.*#=$CC# /^CFLAGS *=/s#=.*#=$CFLAGS# /^SFLAGS *=/s#=.*#=$SFLAGS# @@ -790,6 +806,9 @@ sed < Makefile.in " /^LDCONFIG *=/s#=.*#=$LDCONFIG# /^LDSHAREDLIBC *=/s#=.*#=$LDSHAREDLIBC# /^EXE *=/s#=.*#=$EXE# +/^SRCDIR *=/s#=.*#=$SRCDIR# +/^ZINC *=/s#=.*#=$ZINC# +/^ZINCOUT *=/s#=.*#=$ZINCOUT# /^prefix *=/s#=.*#=$prefix# /^exec_prefix *=/s#=.*#=$exec_prefix# /^libdir *=/s#=.*#=$libdir# @@ -803,7 +822,7 @@ sed < Makefile.in " " > Makefile # create zlib.pc with the configure results -sed < zlib.pc.in " +sed < ${SRCDIR}zlib.pc.in " /^CC *=/s#=.*#=$CC# /^CFLAGS *=/s#=.*#=$CFLAGS# /^CPP *=/s#=.*#=$CPP#