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* libtool.m4 (lt_cv_compiler_c_o): Cache it.

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(lt_cv_compiler_o_lo): Likewise.
This commit is contained in:
Alexandre Oliva 2001-03-13 15:00:47 +00:00
parent 759f3a7ed0
commit 5057de16ca
2 changed files with 19 additions and 8 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2001-03-13 Alexandre Oliva <aoliva@redhat.com>
* libtool.m4 (lt_cv_compiler_c_o): Cache it.
(lt_cv_compiler_o_lo): Likewise.
2001-03-09 Peter Eisentraut <peter_e@gmx.net>
* ltmain.in (clean): Automatically remove $objdir (usually '.libs').

22
libtool.m4 vendored
View File

@ -1006,6 +1006,7 @@ can_build_shared="$lt_cv_prog_cc_can_build_shared"
##
# Check to see if options -o and -c are simultaneously supported by compiler
AC_MSG_CHECKING([if $compiler supports -c -o file.$ac_objext])
AC_CACHE_VAL([lt_cv_compiler_c_o], [
$rm -r conftest 2>/dev/null
mkdir conftest
cd conftest
@ -1024,16 +1025,15 @@ if { (eval echo configure:__oline__: \"$ac_compile\") 1>&5; (eval $ac_compile) 2
# The compiler can only warn and ignore the option if not recognized
# So say no if there are warnings
if test -s out/conftest.err; then
compiler_c_o=no
lt_cv_compiler_c_o=no
else
compiler_c_o=yes
lt_cv_compiler_c_o=yes
fi
else
# Append any errors to the config.log.
cat out/conftest.err 1>&AC_FD_CC
compiler_c_o=no
lt_cv_compiler_c_o=no
fi
AC_MSG_RESULT([$compiler_c_o])
CFLAGS="$save_CFLAGS"
chmod u+w .
$rm conftest* out/*
@ -1041,24 +1041,30 @@ rmdir out
cd ..
rmdir conftest
$rm -r conftest 2>/dev/null
])
compiler_c_o=$lt_cv_compiler_c_o
AC_MSG_RESULT([$compiler_c_o])
if test x"$compiler_c_o" = x"yes"; then
# Check to see if we can write to a .lo
AC_MSG_CHECKING([if $compiler supports -c -o file.lo])
compiler_o_lo=no
AC_CACHE_VAL([lt_cv_compiler_o_lo], [
lt_cv_compiler_o_lo=no
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -c -o conftest.lo"
AC_TRY_COMPILE([], [int some_variable = 0;], [dnl
# The compiler can only warn and ignore the option if not recognized
# So say no if there are warnings
if test -s conftest.err; then
compiler_o_lo=no
lt_cv_compiler_o_lo=no
else
compiler_o_lo=yes
lt_cv_compiler_o_lo=yes
fi
])
AC_MSG_RESULT([$compiler_c_o])
CFLAGS="$save_CFLAGS"
])
compiler_o_lo=$lt_cv_compiler_o_lo
AC_MSG_RESULT([$compiler_c_lo])
else
compiler_o_lo=no
fi