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Perl's ldflags usually include at least -lm and maybe some others too.
But in some OSes adding shared library dependencies to other shared libs don't work (or maybe I'd need to do something differently :), so check in configure that if it doesn't work, perl is never even tried to be built as module. On the other hand, if it does work irssi now links with libperl.so if it's found instead of libperl.a which was always used before. git-svn-id: http://svn.irssi.org/repos/irssi/trunk@1035 dbcabf3a-b0e7-0310-adc4-f8d773084564
This commit is contained in:
Timo Sirainen
cras
parent
4a33801669
commit
d304bc65ca
107
configure.in
107
configure.in
@ -269,6 +269,55 @@ fi
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PROG_LIBS="$PROG_LIBS $GLIB_LIBS"
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dnl **
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dnl ** check if we can link dynamic libraries to modules
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dnl **
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AC_MSG_CHECKING([if we can link dynamic libraries with modules])
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DYNLIB_MODULES=no
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cat > conftest.c <<EOF
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#include <math.h>
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int modfunc(void){return (int)floor(1.2);}
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EOF
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./libtool --mode=compile $CC $CFLAGS -c conftest.c 2> /dev/null > /dev/null
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if test ! -s conftest.lo; then
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AC_MSG_RESULT([no, error compiling test module])
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else
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./libtool --mode=link $CC $CFLAGS $LDFLAGS -module -rpath /usr/lib conftest.lo -lm -o libconftest.la > /dev/null
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if test ! -s .libs/libconftest.so -a -s .libs/libconftest.so.0.0; then
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mv .libs/libconftest.so.0.0 .libs/libconftest.so
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fi
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if test ! -s .libs/libconftest.so; then
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AC_MSG_RESULT([no, error linking test module])
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else
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cat > conftest.c <<EOF
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#include <gmodule.h>
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main() {
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GModule *m; int (*modfunc)(void);
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m = g_module_open(".libs/libconftest.so", 0);
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if (!m) g_print("error loading: %s", g_module_error());
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else if (!g_module_symbol(m, "modfunc", (gpointer *) &modfunc))
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g_print("modfunc() symbol not found from module");
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else if (modfunc() == 1) g_print("ok"); else g_print("wrong result?! 1 vs %d", modfunc());
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return 0; }
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EOF
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$CC $CFLAGS conftest.c -o conftest `$GLIB_CONFIG --cflags --libs gmodule` 2> /dev/null > /dev/null
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if test ! -s conftest; then
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AC_MSG_RESULT([no, error compiling test program])
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else
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status="`./conftest`"
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if test "x$status" = "xok"; then
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DYNLIB_MODULES=yes
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AC_MSG_RESULT([yes])
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else
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AC_MSG_RESULT([no, error running: $status])
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fi
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fi
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fi
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rm -rf conftest.* libconftest.la .libs
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fi
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dnl **
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dnl ** curses checks
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dnl **
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@ -307,6 +356,10 @@ else
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has_curses=false
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fi
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dnl **
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dnl ** perl checks
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dnl **
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if test "$want_perl" != "no"; then
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AC_PATH_PROG(perlpath, perl)
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AC_MSG_CHECKING(for Perl compile flags)
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@ -316,12 +369,7 @@ if test "$want_perl" != "no"; then
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AC_MSG_RESULT([not found, building without Perl.])
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want_perl=no
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else
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PERL_LDFLAGS="`$perlpath -MExtUtils::Embed -e ldopts` 2>/dev/null"
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if test "$want_perl" != "static"; then
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dnl * find libperl.a so we could
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LIBPERL_A=`echo "$PERL_LDFLAGS -L/usr/lib"|$perlpath -e 'foreach (split(/ /, <STDIN>)) { if (/^-L(.*)/ && -f $1."/libperl.a") { print $1."/libperl.a" } };'`
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fi
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PERL_LDFLAGS=`$perlpath -MExtUtils::Embed -e ldopts 2>/dev/null`
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dnl * Perl 5.004 and older use perl_xxx variables while
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dnl * later use PL_perl_xxx variables ..
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@ -330,29 +378,46 @@ if test "$want_perl" != "no"; then
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AC_DEFINE(HAVE_PL_PERL)
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fi
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dnl * don't check dynaloader if libperl.a wasn't found..
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if test "x$LIBPERL_A" != "x"; then
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if test "x$DYNLIB_MODULES" = "xno" -a "$want_perl" != "static"; then
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dnl * wanted perl as module, won't get it.
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want_perl=static
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perl_mod_error="Dynamic library dependencies don't work with modules"
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fi
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if test "$want_perl" != "static"; then
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dnl * dynaloader.a -> libperl_dynaloader.la
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DYNALOADER_A=`echo $PERL_LDFLAGS | $sedpath 's/^\(.* \)*\([[^ ]]*DynaLoader\.a\).*/\2/'`
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fi
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dnl * don't check libperl.a if dynaloader.a wasn't found..
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if test "x$DYNALOADER_A" != "x"; then
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dnl * find either libperl.a or libperl.so
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LIBPERL_A=`echo "$PERL_LDFLAGS -L/usr/lib"|$perlpath -e 'foreach (split(/ /, <STDIN>)) { if (/^-L(.*)/) { my $dir=$1; if (\`ls $dir/libperl.so* 2>/dev/null\`) { print "-lperl"; last; }; if (-e "$dir/libperl.a") { print "$dir/libperl.a"; last } } };'`
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if test "x$LIBPERL_A" = "x"; then
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perl_mod_error="Didn't find location of -lperl"
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DYNALOADER_A=
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elif test "$LIBPERL_A" = "-lperl"; then
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LIBPERL_A=
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fi
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fi
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dnl * remove all database stuffs
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PERL_LDFLAGS=`echo $PERL_LDFLAGS | $sedpath 's/-ldb //'`
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PERL_LDFLAGS=`echo $PERL_LDFLAGS | $sedpath 's/-ldbm //'`
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PERL_LDFLAGS=`echo $PERL_LDFLAGS | $sedpath 's/-lndbm //'`
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PERL_LDFLAGS=`echo $PERL_LDFLAGS | $sedpath 's/-lgdbm //'`
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PERL_LDFLAGS=`echo $PERL_LDFLAGS | $sedpath 's/-ldb\( \|$\)//'`
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PERL_LDFLAGS=`echo $PERL_LDFLAGS | $sedpath 's/-ldbm\( \|$\)//'`
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PERL_LDFLAGS=`echo $PERL_LDFLAGS | $sedpath 's/-lndbm\( \|$\)//'`
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PERL_LDFLAGS=`echo $PERL_LDFLAGS | $sedpath 's/-lgdbm\( \|$\)//'`
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dnl * nsl is already in ldflags
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PERL_LDFLAGS=`echo $PERL_LDFLAGS | $sedpath 's/-lnsl //'`
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PERL_LDFLAGS=`echo $PERL_LDFLAGS | $sedpath 's/-lnsl\( \|$\)//'`
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dnl * linux specific ..
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if echo $host_os | grep linux > /dev/null; then
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PERL_LDFLAGS=`echo $PERL_LDFLAGS | $sedpath 's/-lposix //'`
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PERL_LDFLAGS=`echo $PERL_LDFLAGS | $sedpath 's/-lposix\( \|$\)//'`
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fi
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dnl * libc is of course in list already
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PERL_LDFLAGS=`echo $PERL_LDFLAGS | $sedpath 's/-lc //'`
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PERL_LDFLAGS=`echo $PERL_LDFLAGS | $sedpath 's/-lc\( \|$\)//'`
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dnl * must not be in LIBADD line
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PERL_LDFLAGS=`echo $PERL_LDFLAGS | $sedpath 's/-rdynamic //'`
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PERL_LDFLAGS=`echo $PERL_LDFLAGS | $sedpath 's/-rdynamic\( \|$\)//'`
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if test "x$want_perl" = "xstatic"; then
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AC_MSG_RESULT(ok)
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@ -362,7 +427,9 @@ if test "$want_perl" != "no"; then
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else
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AC_MSG_RESULT(ok)
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PERL_LDFLAGS=`echo $PERL_LDFLAGS | $sedpath 's/^\(.* \)*[[^ ]]*DynaLoader\.a/\1libperl_dynaloader.la/'`
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PERL_LDFLAGS=`echo $PERL_LDFLAGS | $sedpath 's/ -lperl/ libperl_orig.la/'`
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if test "x$LIBPERL_A" != "x"; then
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PERL_LDFLAGS=`echo $PERL_LDFLAGS | $sedpath 's/ -lperl/ libperl_orig.la/'`
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fi
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AC_SUBST(LIBPERL_A)
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AC_SUBST(DYNALOADER_A)
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fi
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@ -577,6 +644,12 @@ else
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echo "Building with Perl support . : no"
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fi
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if test "x$perl_mod_error" != "x"; then
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echo " - NOTE: Perl support will be compiled statically to irssi, not as"
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echo " a module as requested. Reason:"
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echo " $perl_mod_error"
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fi
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if test "x$want_perl" = "xyes"; then
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if test "x$PERL_LIB_DIR" = "x"; then
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echo "Perl library directory ..... : (default - usually /usr/local/lib/perl_site)"
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@ -26,7 +26,7 @@ libperl_la_DEPENDENCIES = .libs/libperl_orig.a .libs/DynaLoader.a
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.libs/libperl_orig.a:
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if [ ! -d .libs ]; then mkdir .libs; fi
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rm -f .libs/libperl_orig.a
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$(LN_S) $(LIBPERL_A) .libs/libperl_orig.a
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if [ x$(LIBPERL_A) = x ]; then touch .libs/libperl_orig.a; else $(LN_S) $(LIBPERL_A) .libs/libperl_orig.a; fi
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.libs/DynaLoader.a:
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if [ ! -d .libs ]; then mkdir .libs; fi
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rm -f .libs/DynaLoader.a
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