Hi, A while ago had a report of build failure against a Darwin branch on the latest OS release. This was because (temporarily) the symlink from libm.dylib => libSystem.dylib had been removed/omitted.
libm is not needed on Darwin, and should not be added unconditionally even if that is (mostly) harmless since it is a symlink to libc. There could be cases where the addition was not completely harmless because the presentation of the symlink would cause the symbols exposed in libSystem to be considered ahead of ones presented in convenience libraries. tested on x86_64, i686-darwin, x86_64-linux, OK for master? thanks Iain libgfortran/ChangeLog: * Makefile.am: Use configured libm availability. * Makefile.in: Regenerate. * configure: Regenerate. * configure.ac: Use libtool macro to find libm availability. * libgfortran.spec.in: Use configured libm availability. --- libgfortran/Makefile.am | 2 +- libgfortran/Makefile.in | 3 +- libgfortran/configure | 142 ++++++++++++++++++++++++++++++++ libgfortran/configure.ac | 1 + libgfortran/libgfortran.spec.in | 2 +- 5 files changed, 147 insertions(+), 3 deletions(-) diff --git a/libgfortran/Makefile.am b/libgfortran/Makefile.am index 8d104321567..6fc4b465c6e 100644 --- a/libgfortran/Makefile.am +++ b/libgfortran/Makefile.am @@ -42,7 +42,7 @@ libgfortran_la_LINK = $(LINK) $(libgfortran_la_LDFLAGS) libgfortran_la_LDFLAGS = -version-info `grep -v '^\#' $(srcdir)/libtool-version` \ $(LTLDFLAGS) $(LIBQUADLIB) ../libbacktrace/libbacktrace.la \ $(HWCAP_LDFLAGS) \ - -lm $(extra_ldflags_libgfortran) \ + $(LIBM) $(extra_ldflags_libgfortran) \ $(version_arg) -Wc,-shared-libgcc libgfortran_la_DEPENDENCIES = $(version_dep) libgfortran.spec $(LIBQUADLIB_DEP) diff --git a/libgfortran/configure.ac b/libgfortran/configure.ac index 523eb24bca1..513fd80b936 100644 --- a/libgfortran/configure.ac +++ b/libgfortran/configure.ac @@ -260,6 +260,7 @@ AC_PROG_INSTALL #AC_MSG_NOTICE([====== Starting libtool configuration]) AC_LIBTOOL_DLOPEN AM_PROG_LIBTOOL +AC_CHECK_LIBM ACX_LT_HOST_FLAGS AC_SUBST(enable_shared) AC_SUBST(enable_static) diff --git a/libgfortran/libgfortran.spec.in b/libgfortran/libgfortran.spec.in index 95aa3f842a3..b870e78c151 100644 --- a/libgfortran/libgfortran.spec.in +++ b/libgfortran/libgfortran.spec.in @@ -5,4 +5,4 @@ # %rename lib liborig -*lib: @LIBQUADSPEC@ -lm %(libgcc) %(liborig) +*lib: @LIBQUADSPEC@ @LIBM@ %(libgcc) %(liborig) -- 2.24.3 (Apple Git-128)