diff options
Diffstat (limited to 'libstdc++-v3/configure.ac')
| -rw-r--r-- | libstdc++-v3/configure.ac | 20 |
1 files changed, 0 insertions, 20 deletions
diff --git a/libstdc++-v3/configure.ac b/libstdc++-v3/configure.ac index 1fd8119b51d..2ee2bdbce28 100644 --- a/libstdc++-v3/configure.ac +++ b/libstdc++-v3/configure.ac @@ -78,34 +78,14 @@ AM_INIT_AUTOMAKE([1.9.3 no-define foreign no-dependencies -Wall -Wno-portability AH_TEMPLATE(PACKAGE, [Name of package]) AH_TEMPLATE(VERSION, [Version number of package]) -# We're almost certainly being configured before anything else which uses -# C++, so all of our AC_PROG_* discoveries will be cached. It's vital that -# we not cache the value of CXX that we "discover" here, because it's set -# to something unique for us and libjava. Other target libraries need to -# find CXX for themselves. We yank the rug out from under the normal AC_* -# process by sneakily renaming the cache variable. This also lets us debug -# the value of "our" CXX in postmortems. -# -# We must also force CXX to /not/ be a precious variable, otherwise the -# wrong (non-multilib-adjusted) value will be used in multilibs. This -# little trick also affects CPPFLAGS, CXXFLAGS, and LDFLAGS. And as a side -# effect, CXXFLAGS is no longer automagically subst'd, so we have to do -# that ourselves. Un-preciousing AC_PROG_CC also affects CC and CFLAGS. -# # -fno-builtin must be present here so that a non-conflicting form of # std::exit can be guessed by AC_PROG_CXX, and used in later tests. -m4_define([ac_cv_prog_CXX],[glibcxx_cv_prog_CXX]) -m4_rename([_AC_ARG_VAR_PRECIOUS],[glibcxx_PRECIOUS]) -m4_define([_AC_ARG_VAR_PRECIOUS],[]) save_CXXFLAGS="$CXXFLAGS" CXXFLAGS="$CXXFLAGS -fno-builtin" AC_PROG_CC AC_PROG_CXX CXXFLAGS="$save_CXXFLAGS" -m4_rename_force([glibcxx_PRECIOUS],[_AC_ARG_VAR_PRECIOUS]) -AC_SUBST(CFLAGS) -AC_SUBST(CXXFLAGS) # Runs configure.host, and assorted other critical bits. Sets # up critical shell variables. |