From c8295a7d2f68b5f2733b947ee2dbcd4358d0bf37 Mon Sep 17 00:00:00 2001 From: Stefan Metzmacher Date: Wed, 6 Sep 2006 15:01:25 +0000 Subject: r18181: use: CC and CFLAGS LD and LDFLAGS STLD and STLD_FLAGS SHLD and SHLD_FLAGS all controled by configure and import the values from samba3 which are more recent metze (This used to be commit 5e59153735102df6fae2eaaac6a7c3db86c95f8f) --- source4/build/m4/check_ld.m4 | 210 +++++++++++++++++++++---------------------- 1 file changed, 101 insertions(+), 109 deletions(-) (limited to 'source4/build/m4/check_ld.m4') diff --git a/source4/build/m4/check_ld.m4 b/source4/build/m4/check_ld.m4 index 137ef8b05d..51dcce6302 100644 --- a/source4/build/m4/check_ld.m4 +++ b/source4/build/m4/check_ld.m4 @@ -5,187 +5,174 @@ dnl Copyright (C) Jelmer Vernooij 2006 dnl Released under the GNU GPL dnl ------------------------------------------------------- dnl -dnl Check if we use GNU ld -AC_PATH_PROG(LD, ld) + +AC_PATH_PROG(PROG_LD,ld) AC_PROG_LD_GNU -AC_PATH_PROG(AR, ar) +AC_PATH_PROG(PROG_AR, ar) +AC_SUBST(STLD) +AC_SUBST(STLD_FLAGS) +AC_SUBST(BLDSHARED) +AC_SUBST(LD) +AC_SUBST(LDFLAGS) +AC_SUBST(SHLD) +AC_SUBST(SHLD_FLAGS) AC_SUBST(SHLIBEXT) -AC_SUBST(LDSHFLAGS) AC_SUBST(SONAMEFLAG) -AC_SUBST(DYNEXP) AC_SUBST(PICFLAG) -AC_SUBST(BLDSHARED) # Assume non-shared by default and override below -BLDSHARED="false" - # these are the defaults, good for lots of systems -DYNEXP= -HOST_OS="$host_os" -LDSHFLAGS="-shared" +STLD=${PROG_AR} +STLD_FLAGS="-rcs" +BLDSHARED="false" +LD="${CC}" +LDFLAGS="" +SHLD="${CC}" +SHLD_FLAGS="-shared" +SHLIBEXT="so" SONAMEFLAG="" -SHLD="\${CC}" PICFLAG="" -SHLIBEXT="so" AC_MSG_CHECKING([ability to build shared libraries]) # and these are for particular systems case "$host_os" in *linux*) - AC_DEFINE(LINUX,1,[Whether the host os is linux]) BLDSHARED="true" - LDSHFLAGS="-shared" - DYNEXP="-Wl,--export-dynamic" - PICFLAG="-fPIC" + if test "${ac_cv_gnu_ld_no_default_allow_shlib_undefined}" = "yes"; then + SHLD_FLAGS="-shared -Wl,-Bsymbolic -Wl,--allow-shlib-undefined" + else + SHLD_FLAGS="-shared -Wl,-Bsymbolic" + fi + LDFLAGS="-Wl,--export-dynamic" + PICFLAGS="-fPIC" SONAMEFLAG="-Wl,-soname=" ;; *solaris*) - AC_DEFINE(SUNOS5,1,[Whether the host os is solaris]) BLDSHARED="true" - LDSHFLAGS="-G" + SHLD_FLAGS="-G" + SONAMEFLAG="-h " if test "${GCC}" = "yes"; then - PICFLAG="-fPIC" + PICFLAGS="-fPIC" + SONAMEFLAG="-Wl,-soname=" if test "${ac_cv_prog_gnu_ld}" = "yes"; then - DYNEXP="-Wl,-E" + LDFLAGS="-Wl,-E" fi else - PICFLAG="-KPIC" + PICFLAGS="-KPIC" ## ${CFLAGS} added for building 64-bit shared ## libs using Sun's Compiler - LDSHFLAGS="-G \${CFLAGS}" + SHLD_FLAGS="-G \${CFLAGS}" fi ;; *sunos*) - AC_DEFINE(SUNOS4,1,[Whether the host os is sunos4]) BLDSHARED="true" - LDSHFLAGS="-G" - PICFLAG="-KPIC" # Is this correct for SunOS + SHLD_FLAGS="-G" + SONAMEFLAG="-Wl,-h," + PICFLAGS="-KPIC" # Is this correct for SunOS ;; - *netbsd* | *freebsd*) + *netbsd* | *freebsd* | *dragonfly* ) BLDSHARED="true" - LDSHFLAGS="-shared" - DYNEXP="-Wl,--export-dynamic" - PICFLAG="-fPIC -DPIC" + LDFLAGS="-Wl,--export-dynamic" + SONAMEFLAG="-Wl,-soname," + PICFLAGS="-fPIC -DPIC" ;; *openbsd*) BLDSHARED="true" - LDSHFLAGS="-shared" - DYNEXP="-Wl,-Bdynamic" - PICFLAG="-fPIC" + LDFLAGS="-Wl,-Bdynamic" + SONAMEFLAG="-Wl,-soname," + PICFLAGS="-fPIC" ;; *irix*) - AC_DEFINE(IRIX,1,[Whether the host os is irix]) - ATTEMPT_WRAP32_BUILD=yes BLDSHARED="true" - LDSHFLAGS="-set_version sgi1.0 -shared" + SHLD_FLAGS="-set_version sgi1.0 -shared" SONAMEFLAG="-soname " - SHLD="\${LD}" + SHLD="${PROG_LD}" if test "${GCC}" = "yes"; then - PICFLAG="-fPIC" + PICFLAGS="-fPIC" else - PICFLAG="-KPIC" + PICFLAGS="-KPIC" fi ;; *aix*) - AC_DEFINE(AIX,1,[Whether the host os is aix]) BLDSHARED="true" - LDSHFLAGS="-Wl,-bexpall,-bM:SRE,-bnoentry,-berok" - DYNEXP="-Wl,-brtl,-bexpall,-bbigtoc" - PICFLAG="-O2" - if test "${GCC}" != "yes"; then - ## for funky AIX compiler using strncpy() - CFLAGS="$CFLAGS -D_LINUX_SOURCE_COMPAT -qmaxmem=32000" - fi + SHLD_FLAGS="-Wl,-G,-bexpall" + LDFLAGS="-Wl,-brtl,-bexpall,-bbigtoc" + # as AIX code is always position independent... + PICFLAGS="-O2" ;; *hpux*) - AC_DEFINE(HPUX,1,[Whether the host os is HPUX]) - SHLIBEXT="sl" # Use special PIC flags for the native HP-UX compiler. if test $ac_cv_prog_cc_Ae = yes; then BLDSHARED="true" - SHLD="/usr/bin/ld" - LDSHFLAGS="-B symbolic -b -z" - SONAMEFLAG="+h " - PICFLAG="+z" + SHLD_FLAGS="-b -Wl,-B,symbolic,-b,-z" + SONAMEFLAG="-Wl,+h " + PICFLAGS="+z" + elif test "${GCC}" = "yes"; then + BLDSHARED="true" # I hope this is correct + PICFLAGS="-fPIC" + fi + if test "$host_cpu" = "ia64"; then + SHLIBEXT="so" + LDFLAGS="-Wl,-E,+b/usr/local/lib/hpux32:/usr/lib/hpux32" + else + SHLIBEXT="sl" + LDFLAGS="-Wl,-E,+b/usr/local/lib:/usr/lib" fi - DYNEXP="-Wl,-E" - ;; - *qnx*) - AC_DEFINE(QNX,1,[Whether the host os is qnx]) ;; *osf*) - AC_DEFINE(OSF1,1,[Whether the host os is osf1]) BLDSHARED="true" - LDSHFLAGS="-shared" SONAMEFLAG="-Wl,-soname," - PICFLAG="-fPIC" - ;; - *sco*) - AC_DEFINE(SCO,1,[Whether the host os is sco unix]) + PICFLAGS="-fPIC" ;; *unixware*) - AC_DEFINE(UNIXWARE,1,[Whether the host os is unixware]) BLDSHARED="true" - LDSHFLAGS="-shared" SONAMEFLAG="-Wl,-soname," - PICFLAG="-KPIC" - ;; - *next2*) - AC_DEFINE(NEXT2,1,[Whether the host os is NeXT v2]) + PICFLAGS="-KPIC" ;; - *dgux*) - ;; - *sysv4*) - AC_DEFINE(SYSV,1,[Whether this is a system V system]) - case "$host" in - *-univel-*) - if [ test "$GCC" != yes ]; then - AC_DEFINE(HAVE_MEMSET,1,[Whether memset() is available]) - fi - LDSHFLAGS="-G" - DYNEXP="-Bexport" - ;; - *mips-sni-sysv4*) - AC_DEFINE(RELIANTUNIX,1,[Whether the host os is reliantunix]) - ;; - esac - ;; - - *sysv5*) - AC_DEFINE(SYSV,1,[Whether this is a system V system]) - if [ test "$GCC" != yes ]; then - AC_DEFINE(HAVE_MEMSET,1,[Whether memset() is available]) - fi - LDSHFLAGS="-G" - ;; - *-vms) - BLDSHARED="false" - LDSHFLAGS="" - ;; - *vos*) - BLDSHARED="false" - LDSHFLAGS="" - ;; - *) + *darwin*) + BLDSHARED="true" + SHLD_FLAGS="-bundle -flat_namespace -undefined suppress" + SHLIBEXT="dylib" ;; esac + AC_MSG_RESULT($BLDSHARED) -AC_MSG_CHECKING([linker flags for shared libraries]) -AC_MSG_RESULT([$LDSHFLAGS]) -AC_MSG_CHECKING([compiler flags for position-independent code]) -AC_MSG_RESULT([$PICFLAG]) + +AC_MSG_CHECKING([LD]) +AC_MSG_RESULT([$LD]) +AC_MSG_CHECKING([LDFLAGS]) +AC_MSG_RESULT([$LDFLAGS]) + +AC_MSG_CHECKING([STLD]) +AC_MSG_RESULT([$STLD]) +AC_MSG_CHECKING([STLD_FLAGS]) +AC_MSG_RESULT([$STLD_FLAGS]) ####################################################### # test whether building a shared library actually works if test $BLDSHARED = true; then + +AC_MSG_CHECKING([SHLD]) +AC_MSG_RESULT([$SHLD]) +AC_MSG_CHECKING([SHLD_FLAGS]) +AC_MSG_RESULT([$SHLD_FLAGS]) + +AC_MSG_CHECKING([SHLIBEXT]) +AC_MSG_RESULT([$SHLIBEXT]) +AC_MSG_CHECKING([SONAMEFLAG]) +AC_MSG_RESULT([$SONAMEFLAG]) + +AC_MSG_CHECKING([PICFLAG]) +AC_MSG_RESULT([$PICFLAG]) + AC_CACHE_CHECK([whether building shared libraries actually works], [ac_cv_shlib_works],[ ac_cv_shlib_works=no # try building a trivial shared library ${CC} ${CFLAGS} ${PICFLAG} -c ${srcdir-.}/build/tests/shlib.c -o shlib.o && - ${SHLD} ${LDSHFLAGS} `eval echo ${LDFLAGS}` -o shlib.${SHLIBEXT} shlib.o && + ${SHLD} `eval echo ${SHLD_FLAGS} ` -o shlib.${SHLIBEXT} shlib.o && ac_cv_shlib_works=yes rm -f shlib.${SHLIBEXT} shlib.o ]) @@ -194,4 +181,9 @@ if test $ac_cv_shlib_works = no; then fi fi - +AC_ARG_ENABLE(dso, +[ --enable-dso Enable building internal libraries as DSO's (experimental)], +[ if test x$enable_dso != xyes; then + BLDSHARED=false + fi], +[BLDSHARED=false]) -- cgit