diff options
Diffstat (limited to 'libgcobol/acinclude.m4')
| -rw-r--r-- | libgcobol/acinclude.m4 | 124 |
1 files changed, 62 insertions, 62 deletions
diff --git a/libgcobol/acinclude.m4 b/libgcobol/acinclude.m4 index aab0895..0e81b10 100644 --- a/libgcobol/acinclude.m4 +++ b/libgcobol/acinclude.m4 @@ -44,6 +44,10 @@ AC_DEFUN([LIBGCOBOL_CHECK_FLOAT128], [ AC_CACHE_CHECK([whether we have a usable _Float128 type], libgcob_cv_have_float128, [ GCC_TRY_COMPILE_OR_LINK([ +#if __LDBL_MANT_DIG__ == 113 && __LDBL_MIN_EXP__ == -16381 +#error "long double is IEEE quad, no need for libquadmath" +#endif + _Float128 foo (_Float128 x) { _Complex _Float128 z1, z2; @@ -90,32 +94,22 @@ AC_DEFUN([LIBGCOBOL_CHECK_FLOAT128], [ fi AC_DEFINE(HAVE_FLOAT128, 1, [Define if target has usable _Float128 and __float128 types.]) - dnl Check whether -Wl,--as-needed resp. -Wl,-zignore is supported - dnl - dnl Turn warnings into error to avoid testsuite breakage. So enable - dnl AC_LANG_WERROR, but there's currently (autoconf 2.64) no way to turn - dnl it off again. As a workaround, save and restore werror flag like - dnl AC_PATH_XTRA. - dnl Cf. http://gcc.gnu.org/ml/gcc-patches/2010-05/msg01889.html - ac_xsave_[]_AC_LANG_ABBREV[]_werror_flag=$ac_[]_AC_LANG_ABBREV[]_werror_flag - AC_CACHE_CHECK([whether --as-needed/-z ignore works], - [libgcob_cv_have_as_needed], - [ - # Test for native Solaris options first. - # No whitespace after -z to pass it through -Wl. - libgcob_cv_as_needed_option="-zignore" - libgcob_cv_no_as_needed_option="-zrecord" - save_LDFLAGS="$LDFLAGS" - LDFLAGS="$LDFLAGS -Wl,$libgcob_cv_as_needed_option -lm -Wl,$libgcob_cv_no_as_needed_option" - libgcob_cv_have_as_needed=no - AC_LANG_WERROR - AC_LINK_IFELSE([AC_LANG_PROGRAM([])], - [libgcob_cv_have_as_needed=yes], - [libgcob_cv_have_as_needed=no]) - LDFLAGS="$save_LDFLAGS" - if test "x$libgcob_cv_have_as_needed" = xno; then - libgcob_cv_as_needed_option="--as-needed" - libgcob_cv_no_as_needed_option="--no-as-needed" + if test "x$USE_IEC_60559" != xyes; then + dnl Check whether -Wl,--as-needed resp. -Wl,-zignore is supported + dnl + dnl Turn warnings into error to avoid testsuite breakage. So enable + dnl AC_LANG_WERROR, but there's currently (autoconf 2.64) no way to turn + dnl it off again. As a workaround, save and restore werror flag like + dnl AC_PATH_XTRA. + dnl Cf. http://gcc.gnu.org/ml/gcc-patches/2010-05/msg01889.html + ac_xsave_[]_AC_LANG_ABBREV[]_werror_flag=$ac_[]_AC_LANG_ABBREV[]_werror_flag + AC_CACHE_CHECK([whether --as-needed/-z ignore works], + [libgcob_cv_have_as_needed], + [ + # Test for native Solaris options first. + # No whitespace after -z to pass it through -Wl. + libgcob_cv_as_needed_option="-zignore" + libgcob_cv_no_as_needed_option="-zrecord" save_LDFLAGS="$LDFLAGS" LDFLAGS="$LDFLAGS -Wl,$libgcob_cv_as_needed_option -lm -Wl,$libgcob_cv_no_as_needed_option" libgcob_cv_have_as_needed=no @@ -124,45 +118,51 @@ AC_DEFUN([LIBGCOBOL_CHECK_FLOAT128], [ [libgcob_cv_have_as_needed=yes], [libgcob_cv_have_as_needed=no]) LDFLAGS="$save_LDFLAGS" - fi - ac_[]_AC_LANG_ABBREV[]_werror_flag=$ac_xsave_[]_AC_LANG_ABBREV[]_werror_flag - ]) - - dnl Determine -Bstatic ... -Bdynamic etc. support from gfortran -### stderr. - touch conftest1.$ac_objext conftest2.$ac_objext - LQUADMATH=-lquadmath - $CXX -static-libgcobol -### -o conftest \ - conftest1.$ac_objext -lgcobol conftest2.$ac_objext 2>&1 >/dev/null \ - | grep "conftest1.$ac_objext.*conftest2.$ac_objext" > conftest.cmd - if grep "conftest1.$ac_objext.* -Bstatic -lgcobol -Bdynamic .*conftest2.$ac_objext" \ - conftest.cmd >/dev/null 2>&1; then - LQUADMATH="%{static-libquadmath:-Bstatic} -lquadmath %{static-libquadmath:-Bdynamic}" - elif grep "conftest1.$ac_objext.* -bstatic -lgcobol -bdynamic .*conftest2.$ac_objext" \ - conftest.cmd >/dev/null 2>&1; then - LQUADMATH="%{static-libquadmath:-bstatic} -lquadmath %{static-libquadmath:-bdynamic}" - elif grep "conftest1.$ac_objext.* -aarchive_shared -lgcobol -adefault .*conftest2.$ac_objext" \ - conftest.cmd >/dev/null 2>&1; then - LQUADMATH="%{static-libquadmath:-aarchive_shared} -lquadmath %{static-libquadmath:-adefault}" - elif grep "conftest1.$ac_objext.*libgcobol.a .*conftest2.$ac_objext" \ + if test "x$libgcob_cv_have_as_needed" = xno; then + libgcob_cv_as_needed_option="--as-needed" + libgcob_cv_no_as_needed_option="--no-as-needed" + save_LDFLAGS="$LDFLAGS" + LDFLAGS="$LDFLAGS -Wl,$libgcob_cv_as_needed_option -lm -Wl,$libgcob_cv_no_as_needed_option" + libgcob_cv_have_as_needed=no + AC_LANG_WERROR + AC_LINK_IFELSE([AC_LANG_PROGRAM([])], + [libgcob_cv_have_as_needed=yes], + [libgcob_cv_have_as_needed=no]) + LDFLAGS="$save_LDFLAGS" + fi + ac_[]_AC_LANG_ABBREV[]_werror_flag=$ac_xsave_[]_AC_LANG_ABBREV[]_werror_flag + ]) + + dnl Determine -Bstatic ... -Bdynamic etc. support from gfortran -### stderr. + touch conftest1.$ac_objext conftest2.$ac_objext + LQUADMATH=-lquadmath + $CXX -static-libgcobol -### -o conftest \ + conftest1.$ac_objext -lgcobol conftest2.$ac_objext 2>&1 >/dev/null \ + | grep "conftest1.$ac_objext.*conftest2.$ac_objext" > conftest.cmd + if grep "conftest1.$ac_objext.* -Bstatic -lgcobol -Bdynamic .*conftest2.$ac_objext" \ + conftest.cmd >/dev/null 2>&1; then + LQUADMATH="%{static-libquadmath:-Bstatic} -lquadmath %{static-libquadmath:-Bdynamic}" + elif grep "conftest1.$ac_objext.* -bstatic -lgcobol -bdynamic .*conftest2.$ac_objext" \ + conftest.cmd >/dev/null 2>&1; then + LQUADMATH="%{static-libquadmath:-bstatic} -lquadmath %{static-libquadmath:-bdynamic}" + elif grep "conftest1.$ac_objext.* -aarchive_shared -lgcobol -adefault .*conftest2.$ac_objext" \ + conftest.cmd >/dev/null 2>&1; then + LQUADMATH="%{static-libquadmath:-aarchive_shared} -lquadmath %{static-libquadmath:-adefault}" + elif grep "conftest1.$ac_objext.*libgcobol.a .*conftest2.$ac_objext" \ conftest.cmd >/dev/null 2>&1; then - LQUADMATH="%{static-libquadmath:libquadmath.a%s;:-lquadmath}" - fi - rm -f conftest1.$ac_objext conftest2.$ac_objext conftest conftest.cmd - - dnl For static libgcobol linkage, depend on libquadmath only if needed. - dnl If using *f128 APIs from libc/libm, depend on libquadmath only if needed - dnl even for dynamic libgcobol linkage, and don't link libgcobol against - dnl -lquadmath. - if test "x$libgcob_cv_have_as_needed" = xyes; then - if test "x$USE_IEC_60559" = xyes; then - LIBQUADSPEC="$libgcob_cv_as_needed_option $LQUADMATH $libgcob_cv_no_as_needed_option" + LQUADMATH="%{static-libquadmath:libquadmath.a%s;:-lquadmath}" + fi + rm -f conftest1.$ac_objext conftest2.$ac_objext conftest conftest.cmd + + if test "x$libgcob_cv_have_as_needed" = xyes; then + if test "x$USE_IEC_60559" = xyes; then + LIBQUADSPEC="$libgcob_cv_as_needed_option $LQUADMATH $libgcob_cv_no_as_needed_option" + else + LIBQUADSPEC="%{static-libgcobol:$libgcob_cv_as_needed_option} $LQUADMATH %{static-libgcobol:$libgcob_cv_no_as_needed_option}" + fi else - LIBQUADSPEC="%{static-libgcobol:$libgcob_cv_as_needed_option} $LQUADMATH %{static-libgcobol:$libgcob_cv_no_as_needed_option}" + LIBQUADSPEC="$LQUADMATH" fi - else - LIBQUADSPEC="$LQUADMATH" - fi - if test "x$USE_IEC_60559" != xyes; then if test -f ../libquadmath/libquadmath.la; then LIBQUADLIB=../libquadmath/libquadmath.la LIBQUADLIB_DEP=../libquadmath/libquadmath.la |