dnl Copyright (C) 1988 Eleftherios Gkioulekas <lf@amath.washington.edu>
+dnl Copyright (C) 2009 Free Software Foundation, Inc.
dnl
dnl This program is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU General Public License as published by
# --------------------------------------------------------------------------
# Check whether the C++ compiler accepts a certain flag
-# If it does it adds the flag to CXXFLAGS
+# If it does it adds the flag to lf_CXXFLAGS
# If it does not then it returns an error to lf_ok
# Usage:
# LF_CHECK_CXX_FLAG(-flag1 -flag2 -flag3 ...)
AC_MSG_CHECKING([whether $CXX accepts $i])
if test -z "`${CXX} $i -c conftest.cc 2>&1`"
then
- CXXFLAGS="${CXXFLAGS} $i"
+ lf_CXXFLAGS="${lf_CXXFLAGS} $i"
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
done
rm -f conftest.cc conftest.o
+ AC_SUBST(lf_CXXFLAGS)
])
# --------------------------------------------------------------------------
# Check whether the C compiler accepts a certain flag
-# If it does it adds the flag to CFLAGS
+# If it does it adds the flag to lf_CFLAGS
# If it does not then it returns an error to lf_ok
# Usage:
# LF_CHECK_CC_FLAG(-flag1 -flag2 -flag3 ...)
AC_MSG_CHECKING([whether $CC accepts $i])
if test -z "`${CC} $i -c conftest.c 2>&1`"
then
- CFLAGS="${CFLAGS} $i"
+ lf_CFLAGS="${lf_CFLAGS} $i"
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
done
rm -f conftest.c conftest.o
+ AC_SUBST(lf_CFLAGS)
])
# --------------------------------------------------------------------------
# Check whether the Fortran compiler accepts a certain flag
-# If it does it adds the flag to FFLAGS
+# If it does it adds the flag to lf_FFLAGS
# If it does not then it returns an error to lf_ok
# Usage:
# LF_CHECK_F77_FLAG(-flag1 -flag2 -flag3 ...)
AC_MSG_CHECKING([whether $F77 accepts $i])
if test -z "`${F77} $i -c conftest.f 2>&1`"
then
- FFLAGS="${FFLAGS} $i"
+ lf_FFLAGS="${lf_FFLAGS} $i"
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
done
rm -f conftest.f conftest.o
+ AC_SUBST(lf_FFLAGS)
])
# ----------------------------------------------------------------------
-# Enable compiler warnings. Conditionally enable -Werror.
-# Call this command AFTER you have configured ALL your
-# compilers.
+# Enable compiler warnings.
+# Call this command AFTER you have configured ALL your compilers.
# ----------------------------------------------------------------------
AC_DEFUN([LF_SET_WARNINGS],[
- lf_warnings_as_errors=""
- AC_ARG_ENABLE([warnings-as-errors],
- AC_HELP_STRING([--enable-warnings-as-errors], [Treat compiler warnings as errors (no)]),
- [case "$enableval" in
- (no) ;;
- (yes) lf_warnings_as_errors="-Werror" ;;
- (*) AC_MSG_ERROR([Invalid argument ($enableval) to --enable-warnings-as-errors]) ;;
- esac],
- [])
-
dnl Warnings for the two main compilers
dnl add -Wextra when you're got time to fix a bunch of them ;-)
- cc_warning_flags="-Wall -Werror-implicit-function-declaration $lf_warnings_as_errors"
- cxx_warning_flags="-Wall -Woverloaded-virtual $lf_warnings_as_errors"
+ cc_warning_flags="-Wall -Werror-implicit-function-declaration"
+ cxx_warning_flags="-Wall -Woverloaded-virtual"
if test -n "${CC}"
then
LF_CHECK_CC_FLAG($cc_warning_flags)
DEFINES=""
AC_SUBST(DEFINES)
+dnl Remember if the user explicity set CFLAGS
+if test -n "${CFLAGS}"; then
+ user_set_cflags=yes
+fi
dnl Remember if the user explicity set CXXFLAGS
if test -n "${CXXFLAGS}"; then
user_set_cxxflags=yes
fi
+
LF_CONFIGURE_CC
LF_CONFIGURE_CXX
GR_LIB64 dnl check for lib64 suffix after choosing compilers
+
+dnl The three macros above are known to override CFLAGS if the user
+dnl didn't specify them. Though I'm sure somebody thought this was
+dnl a good idea, it makes it hard to use other than -g -O2 when compiling
+dnl selected files. Thus we "undo" the damage here...
+dnl
+dnl If the user specified CFLAGS, we use them.
+dnl See Makefile.common for the rest of the magic.
+if test "$user_set_cflags" != yes; then
+ autoconf_default_CFLAGS="$CFLAGS"
+ CFLAGS=""
+fi
+AC_SUBST(autoconf_default_CFLAGS)
+
+
dnl The three macros above are known to override CXXFLAGS if the user
dnl didn't specify them. Though I'm sure somebody thought this was
dnl a good idea, it makes it hard to use other than -g -O2 when compiling
dnl See Makefile.common for the rest of the magic.
if test "$user_set_cxxflags" != yes; then
autoconf_default_CXXFLAGS="$CXXFLAGS"
+ CXXFLAGS=""
if test "$GXX" = yes; then
case "$host_cpu" in
powerpc*)
AC_SUBST(autoconf_default_CXXFLAGS)
AC_SUBST(swig_CXXFLAGS)
-
dnl add ${prefix}/lib${gr_libdir_suffix}/pkgconfig to the head of the PKG_CONFIG_PATH
if test x${PKG_CONFIG_PATH} = x; then
PKG_CONFIG_PATH=${prefix}/lib${gr_libdir_suffix}/pkgconfig
fi
export PKG_CONFIG_PATH
-
+LF_SET_WARNINGS
GR_SET_GPROF
GR_SET_PROF
AM_PROG_AS
dnl check for omnithreads (will soon be removed)
GR_OMNITHREAD
-CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
-CXXFLAGS="$CXXFLAGS $PTHREAD_CFLAGS"
dnl Set the c++ compiler that we use for the build system when cross compiling
if test x$CXX_FOR_BUILD = x
dnl run_tests.sh is created from run_tests.sh.in . Make it executable.
AC_CONFIG_COMMANDS([run_tests_build], [chmod +x run_tests.sh])
-dnl Enable warnings as the last thing before generating output, since
-dnl this may add -Werror to CFLAGS which can cause various configure
-dnl checks to fail.
-LF_SET_WARNINGS
-
AC_OUTPUT
echo
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