| # -*- Autotest -*- |
| |
| AT_BANNER([Low level compiling/preprocessing macros.]) |
| |
| # Copyright (C) 2000-2001, 2003, 2005-2017, 2020-2024 Free Software |
| # Foundation, Inc. |
| # |
| # This program is free software: you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation, either version 3 of the License, or |
| # (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program. If not, see <https://www.gnu.org/licenses/>. |
| |
| |
| # Since the macros which compile are required by most tests, check |
| # them first. But remember that looking for a compiler is even more |
| # primitive, so check those first. |
| |
| |
| ## ------------------------------------- ## |
| ## AC_LANG, AC_LANG_PUSH & AC_LANG_POP. ## |
| ## ------------------------------------- ## |
| |
| AT_SETUP([[AC_LANG, AC_LANG_PUSH & AC_LANG_POP]]) |
| |
| AT_DATA([configure.ac], |
| [[AC_INIT |
| # C |
| AC_LANG([C]) |
| # C |
| AC_LANG_PUSH([C]) |
| # C C |
| AC_LANG_PUSH([C++]) |
| # C++ C C |
| AC_LANG([C++]) |
| # C++ C C |
| AC_LANG_PUSH([Erlang]) |
| # Erlang C++ C C |
| AC_LANG_PUSH([Fortran 77]) |
| # F77 Erlang C++ C C |
| AC_LANG_POP([Fortran 77]) |
| # Erlang C++ C C |
| AC_LANG_POP([Erlang]) |
| # C++ C C |
| AC_LANG([C++]) |
| # C++ C C |
| AC_LANG_POP([C++]) |
| # C C |
| AC_LANG_POP([C]) |
| # C |
| AC_OUTPUT |
| ]]) |
| |
| AT_CHECK_AUTOCONF |
| AT_CHECK([sed -n 's/^ac_ext=//p' configure], 0, |
| [c |
| c |
| c |
| cpp |
| cpp |
| erl |
| f |
| erl |
| cpp |
| cpp |
| c |
| c |
| ]) |
| |
| AT_CLEANUP |
| |
| |
| ## ---------------------- ## |
| ## AC_REQUIRE & AC_LANG. ## |
| ## ---------------------- ## |
| |
| AT_SETUP([AC_REQUIRE & AC_LANG]) |
| |
| AT_DATA([configure.ac], |
| [[AC_DEFUN([AC_F77_1], |
| [AC_LANG_PUSH([Fortran 77]) |
| if test $ac_ext != f; then |
| AC_MSG_ERROR([F77_1: current shell language is $ac_ext, expected Fortran]) |
| fi |
| AC_LANG_POP |
| ]) |
| |
| |
| AC_DEFUN([AC_F77_2], |
| [AC_LANG_PUSH([Fortran 77]) |
| AC_REQUIRE([AC_F77_1]) |
| if test $ac_ext != f; then |
| AC_MSG_ERROR([F77_2: current shell language is $ac_ext, expected Fortran]) |
| fi |
| AC_LANG_POP |
| ]) |
| |
| AC_INIT |
| AC_F77_2 |
| AS_EXIT(0) |
| ]]) |
| |
| AT_CHECK_AUTOCONF([], [0], [], |
| [[trailer.m4: warning: AC_OUTPUT was never used |
| ]]) |
| |
| AT_CHECK_CONFIGURE |
| |
| AT_CLEANUP |
| |
| |
| ## ---------------- ## |
| ## AC_LANG_SOURCE. ## |
| ## ---------------- ## |
| |
| AT_SETUP([AC_LANG_SOURCE]) |
| |
| AT_DATA([configure.ac], |
| [[AC_INIT([pkg], [1.0]) |
| AC_PROG_CC |
| AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#ifndef PACKAGE_NAME |
| choke me |
| #endif |
| int main (void) |
| { |
| return 0; |
| } |
| ]], [], [AC_MSG_FAILURE([confdefs not included])])]) |
| AC_OUTPUT |
| ]]) |
| |
| AT_CHECK_AUTOCONF |
| AT_CHECK_CONFIGURE |
| |
| AT_CLEANUP |
| |
| |
| ## --------------------- ## |
| ## AC_LANG_SOURCE(C++). ## |
| ## --------------------- ## |
| |
| AT_SETUP([AC_LANG_SOURCE(C++)]) |
| |
| AT_DATA([configure.ac], |
| [[AC_INIT([pkg], [1.0]) |
| AC_PROG_CXX |
| AC_LANG([C++]) |
| AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#ifndef PACKAGE_NAME |
| choke me |
| #endif |
| int main (void) |
| { |
| return 0; |
| } |
| ]], [], [AC_MSG_FAILURE([confdefs not included])])]) |
| AC_OUTPUT |
| ]]) |
| |
| AT_CHECK_AUTOCONF |
| AT_CHECK_CONFIGURE |
| |
| AT_CLEANUP |
| |
| |
| ## ------------------------ ## |
| ## AC_LANG_SOURCE example. ## |
| ## ------------------------ ## |
| |
| AT_SETUP([AC_LANG_SOURCE example]) |
| |
| AT_DATA([configure.ac], |
| [[# Taken from autoconf.texi:Generating Sources. |
| # The only change is to not fail if gcc doesn't work. |
| AC_INIT([Hello], [1.0], [bug-hello@example.org], [], |
| [https://www.example.org/]) |
| AC_DEFINE([HELLO_WORLD], ["Hello, World\n"], |
| [Greetings string.]) |
| AC_LANG([C]) |
| AC_LANG_CONFTEST( |
| [AC_LANG_SOURCE([[const char hw[] = "Hello, World\n";]])]) |
| gcc -E -dD conftest.c || AS_EXIT([77]) |
| AC_OUTPUT |
| ]]) |
| |
| AT_CHECK_AUTOCONF |
| AT_CHECK_CONFIGURE([], [], [stdout]) |
| # Taken from autoconf.texi:Generating Sources. |
| # Note that the output may contain more defines and lines matching |
| # # 1 "conftest.c" |
| # so delete everything before the interesting output. |
| AT_CHECK([sed -n 's/ *$//; /^configure: /d; /#define PACKAGE/,$p' stdout], [], |
| [[#define PACKAGE_NAME "Hello" |
| #define PACKAGE_TARNAME "hello" |
| #define PACKAGE_VERSION "1.0" |
| #define PACKAGE_STRING "Hello 1.0" |
| #define PACKAGE_BUGREPORT "bug-hello@example.org" |
| #define PACKAGE_URL "https://www.example.org/" |
| #define HELLO_WORLD "Hello, World\n" |
| |
| const char hw[] = "Hello, World\n"; |
| ]]) |
| |
| AT_CLEANUP |
| |
| |
| ## ------------------------- ## |
| ## AC_LANG_PROGRAM example. ## |
| ## ------------------------- ## |
| |
| AT_SETUP([AC_LANG_PROGRAM example]) |
| |
| AT_DATA([configure.ac], |
| [[# Taken from autoconf.texi:Generating Sources. |
| # The only change is to not fail if gcc doesn't work. |
| AC_INIT([Hello], [1.0], [bug-hello@example.org], [], |
| [https://www.example.org/]) |
| AC_DEFINE([HELLO_WORLD], ["Hello, World\n"], |
| [Greetings string.]) |
| AC_LANG_CONFTEST( |
| [AC_LANG_PROGRAM([[const char hw[] = "Hello, World\n";]], |
| [[fputs (hw, stdout);]])]) |
| gcc -E -dD conftest.c || AS_EXIT([77]) |
| AC_OUTPUT |
| ]]) |
| |
| AT_CHECK_AUTOCONF |
| AT_CHECK_CONFIGURE([], [], [stdout]) |
| # Taken from autoconf.texi:Generating Sources. |
| # Note that the output may contain more defines and lines matching |
| # # 1 "conftest.c" |
| # so delete everything before the interesting output. |
| AT_CHECK([sed -n 's/ *$//; /^configure: /d; /#define PACKAGE/,$p' stdout], [], |
| [[#define PACKAGE_NAME "Hello" |
| #define PACKAGE_TARNAME "hello" |
| #define PACKAGE_VERSION "1.0" |
| #define PACKAGE_STRING "Hello 1.0" |
| #define PACKAGE_BUGREPORT "bug-hello@example.org" |
| #define PACKAGE_URL "https://www.example.org/" |
| #define HELLO_WORLD "Hello, World\n" |
| |
| const char hw[] = "Hello, World\n"; |
| int |
| main (void) |
| { |
| fputs (hw, stdout); |
| ; |
| return 0; |
| } |
| ]]) |
| |
| AT_CLEANUP |
| |
| |
| ## ------------------- ## |
| ## AC_COMPILE_IFELSE. ## |
| ## ------------------- ## |
| |
| AT_SETUP([AC_COMPILE_IFELSE]) |
| AT_KEYWORDS([AC_LANG_DEFINES_PROVIDED]) |
| |
| AT_DATA([configure.ac], |
| [[AC_INIT |
| AC_COMPILE_IFELSE([int main (void) { return 0; }], [], |
| [AC_MSG_ERROR([compiling trivial program failed])]) |
| AC_OUTPUT |
| ]]) |
| |
| AT_CHECK_AUTOCONF([], [], [], [stderr]) |
| AT_CHECK([grep 'no AC_LANG_SOURCE call detected in body' stderr], [], [ignore]) |
| AT_CHECK_AUTOCONF([-W no-syntax]) |
| AT_CHECK_CONFIGURE([-q]) |
| |
| AT_DATA([configure.ac], |
| [[AC_INIT |
| AC_COMPILE_IFELSE([AC_LANG_DEFINES_PROVIDED()int main (void) { return 0; }], [], |
| [AC_MSG_ERROR([compiling trivial program failed])]) |
| AC_OUTPUT |
| ]]) |
| |
| AT_CHECK_AUTOCONF |
| AT_CHECK_CONFIGURE([-q]) |
| |
| AT_DATA([configure.ac], |
| [[AC_INIT |
| AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [return 0])], |
| [], |
| [AC_MSG_ERROR([compiling 'return 0' failed])]) |
| |
| AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [return 2])], |
| [], |
| [AC_MSG_ERROR([compiling 'return 2' failed])]) |
| AC_OUTPUT |
| ]]) |
| |
| AT_CHECK_AUTOCONF |
| AT_CHECK_CONFIGURE([-q]) |
| |
| AT_CLEANUP |
| |
| ## --------------- ## |
| ## AC_RUN_IFELSE. ## |
| ## --------------- ## |
| |
| AT_SETUP([AC_RUN_IFELSE]) |
| AT_KEYWORDS([AC_TRY_RUN]) |
| |
| AT_DATA([configure.ac], |
| [[AC_INIT |
| |
| AC_RUN_IFELSE([AC_LANG_PROGRAM([], [return 0])], |
| [], |
| [AC_MSG_ERROR([saw 'return 0' as a failure])]) |
| |
| AC_RUN_IFELSE([AC_LANG_PROGRAM([], [return 2])], |
| [AC_MSG_ERROR([saw 'return 2' as a success])], |
| [estatus=$? |
| test $estatus != 2 && |
| AC_MSG_ERROR([did not get 2 as exit status: $estatus])]) |
| |
| # The old stinky one. |
| AC_TRY_RUN([int main (void) { return 3; }], |
| [AC_MSG_ERROR([saw 'return 3' as a success])], |
| [estatus=$? |
| test $estatus != 3 && |
| AC_MSG_ERROR([did not get 3 as exit status: $estatus])]) |
| |
| AC_OUTPUT |
| ]]) |
| |
| AT_CHECK_AUTOCONF([], 0, [], |
| [[configure.ac:14: warning: The macro 'AC_TRY_RUN' is obsolete. |
| configure.ac:14: You should run autoupdate. |
| general.m4: AC_TRY_RUN is expanded from... |
| configure.ac:14: the top level |
| ]]) |
| AT_CHECK_CONFIGURE([-q]) |
| |
| AT_CLEANUP |
| |
| ## -------------------------- ## |
| ## Order of 'rm' and actions. ## |
| ## -------------------------- ## |
| |
| AT_SETUP([Order of user actions and cleanup]) |
| AT_DATA([configure.ac], |
| [[AC_INIT |
| AC_PROG_CC |
| |
| AC_PREPROC_IFELSE([AC_LANG_PROGRAM([int grepme;], [])], |
| [{ test -f conftest.err && grep grepme conftest.i; } || AS_EXIT([1])], |
| [AS_EXIT([1])]) |
| AC_PREPROC_IFELSE([AC_LANG_PROGRAM([#define 12 34 /*], [])], |
| [AS_EXIT([1])], |
| [test -f conftest.err || AS_EXIT([1])]) |
| |
| AC_COMPILE_IFELSE([AC_LANG_PROGRAM([int ok;], [])], |
| [test -f conftest.$ac_objext || AS_EXIT([1])], |
| [AS_EXIT([1])]) |
| AC_COMPILE_IFELSE([AC_LANG_PROGRAM([int bad bad;], [])], |
| [AS_EXIT([1])], |
| [test -f conftest.err || AS_EXIT([1])]) |
| |
| AC_LINK_IFELSE([AC_LANG_PROGRAM([int ok;], [])], |
| [test -f conftest$ac_exeext || AS_EXIT([1])], |
| [AS_EXIT([1])]) |
| AC_LINK_IFELSE([AC_LANG_PROGRAM([int bad bad;], [])], |
| [AS_EXIT([1])], |
| [test -f conftest.err || AS_EXIT([1])]) |
| |
| AC_RUN_IFELSE([AC_LANG_PROGRAM([int ok;], [])], |
| [./conftest$ac_exeext || AS_EXIT([1])], |
| [AS_EXIT([1])]) |
| |
| d@&t@nl conftest.err not generated by AC_RUN_IFELSE? |
| AC_RUN_IFELSE([AC_LANG_PROGRAM([int bad bad;], [])], |
| [AS_EXIT([1])], |
| []) |
| |
| AC_OUTPUT |
| ]]) |
| |
| AT_CHECK_AUTOCONF |
| AT_CHECK_CONFIGURE([-q]) |
| |
| AT_CLEANUP |
| |
| |
| ## ------------------ ## |
| ## AC_TRY_LINK_FUNC. ## |
| ## ------------------ ## |
| |
| AT_CHECK_MACRO([AC_TRY_LINK_FUNC], |
| [AC_TRY_LINK_FUNC(printf,, |
| [AC_MSG_ERROR([cannot find 'printf'])]) |
| AC_TRY_LINK_FUNC(Be_doomed_if_your_libc_has_a_function_named_like_this, |
| [AC_MSG_ERROR([found a nonexistent function])])]) |
| |
| ## -------------------- ## |
| ## Multiple languages. ## |
| ## -------------------- ## |
| |
| AT_SETUP([Multiple languages]) |
| |
| # This test should be skipped if the C compiler is a C++ compiler. |
| AT_DATA([configure.ac], |
| [[AC_INIT |
| |
| AC_PROG_CC |
| AC_COMPILE_IFELSE([ |
| AC_LANG_PROGRAM([[ |
| #ifdef __cplusplus |
| choke me |
| #endif |
| ]])], [], AS_EXIT([77])) |
| |
| AC_OUTPUT |
| ]]) |
| |
| AT_CHECK_AUTOCONF |
| AT_CHECK_CONFIGURE |
| |
| # This test should be skipped on systems without a C++ compiler. |
| AT_DATA([configure.ac], |
| [[AC_INIT |
| |
| AC_PROG_CXX |
| AC_LANG_PUSH([C++]) |
| AC_COMPILE_IFELSE([ |
| AC_LANG_PROGRAM([[ |
| #ifndef __cplusplus |
| choke me |
| #endif |
| ]])], [], AS_EXIT([77])) |
| AC_LANG_POP([C++]) |
| |
| AC_OUTPUT |
| ]]) |
| |
| AT_CHECK_AUTOCONF |
| AT_CHECK_CONFIGURE |
| |
| AT_DATA([configure.ac], |
| [[AC_INIT |
| |
| AC_PROG_CC |
| AC_PROG_CXX |
| |
| AC_LANG_PUSH([C]) |
| AC_MSG_CHECKING([a simple C program that is not valid C++]) |
| AC_COMPILE_IFELSE([AC_LANG_PROGRAM([enum a { A, B, C }; |
| enum a f(enum a in) { return in++; }], [])], |
| [AC_MSG_RESULT([ok])], |
| [AC_MSG_RESULT([failed]) |
| AC_MSG_ERROR([could not compile test program])]) |
| AC_LANG_POP([C]) |
| |
| AC_LANG_PUSH([C++]) |
| AC_MSG_CHECKING([a simple C++ program that is not valid C]) |
| AC_COMPILE_IFELSE([AC_LANG_PROGRAM([class A {};], [])], |
| [AC_MSG_RESULT([ok])], |
| [AC_MSG_RESULT([failed]) |
| AC_MSG_ERROR([could not compile test program])]) |
| |
| AC_CHECK_HEADER([cstring]) |
| AC_LANG_POP([C++]) |
| |
| AC_OUTPUT |
| ]]) |
| |
| AT_CHECK_AUTOCONF |
| AT_CHECK_CONFIGURE([-q]) |
| |
| AT_CLEANUP |
