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* lib/autoconf/c.m4 (AC_PROG_CC, AC_PROG_CXX, AC_PROG_OBJC): Call

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_AC_COMPILER_EXEEXT instead of m4_expand_once([_AC_COMPILER_EXEEXT])
* lib/autoconf/fortran.m4 (_AC_PROG_FC): Likewise.
* lib/autoconf/lang.m4 (_AC_COMPILER_EXEEXT_TESTS): On subsequent
  calls, for a new language, only check that the compiler works.
(AC_NO_EXECUTABLES): Change the redefinition of
  _AC_COMPILER_EXEEXT_TESTS so that on subsequent calls, it checks
  that the new language's compiler works if ac_no_link=no, and
  does nothing otherwise.
This commit is contained in:
Paul Eggert 2006-04-02 16:38:54 +00:00
parent 809e269455
commit c2286019bf
4 changed files with 34 additions and 18 deletions
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12
ChangeLog
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@ -1,3 +1,15 @@
2006-04-02 Stepan Kasal <kasal@ucw.cz>
* lib/autoconf/c.m4 (AC_PROG_CC, AC_PROG_CXX, AC_PROG_OBJC): Call
_AC_COMPILER_EXEEXT instead of m4_expand_once([_AC_COMPILER_EXEEXT])
* lib/autoconf/fortran.m4 (_AC_PROG_FC): Likewise.
* lib/autoconf/lang.m4 (_AC_COMPILER_EXEEXT_TESTS): On subsequent
calls, for a new language, only check that the compiler works.
(AC_NO_EXECUTABLES): Change the redefinition of
_AC_COMPILER_EXEEXT_TESTS so that on subsequent calls, it checks
that the new language's compiler works if ac_no_link=no, and
does nothing otherwise.
2006-04-02 Pavel Roskin <proski@gnu.org>
* doc/autoconf.texi (AC_PATH_X): Update per 2005-08-26 change.

6
lib/autoconf/c.m4
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@ -547,7 +547,7 @@ _AC_EVAL([$ac_compiler --version >&AS_MESSAGE_LOG_FD])
_AC_EVAL([$ac_compiler -v >&AS_MESSAGE_LOG_FD])
_AC_EVAL([$ac_compiler -V >&AS_MESSAGE_LOG_FD])
m4_expand_once([_AC_COMPILER_EXEEXT])[]dnl
_AC_COMPILER_EXEEXT
_AC_LANG_COMPILER_GNU
GCC=`test $ac_compiler_gnu = yes && echo yes`
_AC_PROG_CC_G
@ -782,7 +782,7 @@ _AC_EVAL([$ac_compiler --version >&AS_MESSAGE_LOG_FD])
_AC_EVAL([$ac_compiler -v >&AS_MESSAGE_LOG_FD])
_AC_EVAL([$ac_compiler -V >&AS_MESSAGE_LOG_FD])
m4_expand_once([_AC_COMPILER_EXEEXT])[]dnl
_AC_COMPILER_EXEEXT
_AC_LANG_COMPILER_GNU
GXX=`test $ac_compiler_gnu = yes && echo yes`
_AC_PROG_CXX_G
@ -951,7 +951,7 @@ _AC_EVAL([$ac_compiler --version >&AS_MESSAGE_LOG_FD])
_AC_EVAL([$ac_compiler -v >&AS_MESSAGE_LOG_FD])
_AC_EVAL([$ac_compiler -V >&AS_MESSAGE_LOG_FD])
m4_expand_once([_AC_COMPILER_EXEEXT])[]dnl
_AC_COMPILER_EXEEXT
_AC_LANG_COMPILER_GNU
GOBJC=`test $ac_compiler_gnu = yes && echo yes`
_AC_PROG_OBJC_G

2
lib/autoconf/fortran.m4
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@ -369,7 +369,7 @@ _AC_EVAL([$ac_compiler -v >&AS_MESSAGE_LOG_FD])
_AC_EVAL([$ac_compiler -V >&AS_MESSAGE_LOG_FD])
rm -f a.out
m4_expand_once([_AC_COMPILER_EXEEXT])[]dnl
_AC_COMPILER_EXEEXT
# If we don't use `.F' as extension, the preprocessor is not run on the
# input file. (Note that this only needs to work for GNU compilers.)
ac_save_ext=$ac_ext

32
lib/autoconf/lang.m4
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@ -379,22 +379,25 @@ AC_BEFORE([$0], [_AC_COMPILER_EXEEXT])
AC_BEFORE([$0], [AC_LINK_IFELSE])
m4_define([_AC_COMPILER_EXEEXT_TESTS],
[if AC_TRY_EVAL(ac_link); then
ac_no_link=no
[m4_expand_once([
if AC_TRY_EVAL(ac_link); then
ac_no_link=no
else
ac_no_link=yes
# Setting cross_compile will disable run tests; it will
# also disable AC_CHECK_FILE but that's generally
# correct if we can't link.
cross_compiling=yes
EXEEXT=
_AC_COMPILER_EXEEXT_CROSS
fi])
if test $ac_no_link = no; then
]m4_defn([_AC_COMPILER_EXEEXT_TESTS])[
else
ac_no_link=yes
# Setting cross_compile will disable run tests; it will
# also disable AC_CHECK_FILE but that's generally
# correct if we can't link.
cross_compiling=yes
EXEEXT=
_AC_COMPILER_EXEEXT_CROSS
fi
])
m4_define([AC_LINK_IFELSE],
[if test x$ac_no_link = xyes; then
[if test $ac_no_link = yes; then
AC_MSG_ERROR([Link tests are not allowed after AC@&t@_NO_EXECUTABLES.])
fi
]m4_defn([AC_LINK_IFELSE]))
@ -566,8 +569,9 @@ ac_exeext=$EXEEXT
# This macro is modified by the AC_NO_EXECUTABLES hack.
m4_define([_AC_COMPILER_EXEEXT_TESTS],
[_AC_COMPILER_EXEEXT_DEFAULT
_AC_COMPILER_EXEEXT_CROSS
_AC_COMPILER_EXEEXT_O])
m4_expand_once([_AC_COMPILER_EXEEXT_CROSS
_AC_COMPILER_EXEEXT_O])
])
# _AC_COMPILER_EXEEXT
@ -607,7 +611,7 @@ _AC_COMPILER_EXEEXT_TESTS
ac_clean_files=$ac_clean_files_save
_AC_COMPILER_OBJEXT
m4_expand_once([_AC_COMPILER_OBJEXT])
rm -f conftest.*
])# _AC_COMPILER_EXEEXT