diff options
Diffstat (limited to 'm4/putenv.m4')
| -rw-r--r-- | m4/putenv.m4 | 60 |
1 files changed, 34 insertions, 26 deletions
diff --git a/m4/putenv.m4 b/m4/putenv.m4 index a8e3ab33d..919984d91 100644 --- a/m4/putenv.m4 +++ b/m4/putenv.m4 @@ -1,5 +1,5 @@ -# putenv.m4 serial 20 -dnl Copyright (C) 2002-2017 Free Software Foundation, Inc. +# putenv.m4 serial 25 +dnl Copyright (C) 2002-2021 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -14,33 +14,41 @@ AC_DEFUN([gl_FUNC_PUTENV], AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([for putenv compatible with GNU and SVID], - [gl_cv_func_svid_putenv], - [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],[[ - /* Put it in env. */ - if (putenv ("CONFTEST_putenv=val")) - return 1; + [gl_cv_func_svid_putenv], + [AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [AC_INCLUDES_DEFAULT + GL_MDA_DEFINES], + [[ + /* Put it in env. */ + if (putenv ("CONFTEST_putenv=val")) + return 1; - /* Try to remove it. */ - if (putenv ("CONFTEST_putenv")) - return 2; + /* Try to remove it. */ + if (putenv ("CONFTEST_putenv")) + return 2; - /* Make sure it was deleted. */ - if (getenv ("CONFTEST_putenv") != 0) - return 3; + /* Make sure it was deleted. */ + if (getenv ("CONFTEST_putenv") != 0) + return 3; - return 0; - ]])], - gl_cv_func_svid_putenv=yes, - gl_cv_func_svid_putenv=no, - dnl When crosscompiling, assume putenv is broken. - [case "$host_os" in - # Guess yes on glibc systems. - *-gnu*) gl_cv_func_svid_putenv="guessing yes" ;; - # If we don't know, assume the worst. - *) gl_cv_func_svid_putenv="guessing no" ;; - esac - ]) - ]) + return 0; + ]])], + [gl_cv_func_svid_putenv=yes], + [gl_cv_func_svid_putenv=no], + [dnl When crosscompiling, assume putenv is broken. + case "$host_os" in + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_svid_putenv="guessing yes" ;; + # Guess yes on musl systems. + *-musl*) gl_cv_func_svid_putenv="guessing yes" ;; + # Guess no on native Windows. + mingw*) gl_cv_func_svid_putenv="guessing no" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_svid_putenv="$gl_cross_guess_normal" ;; + esac + ]) + ]) case "$gl_cv_func_svid_putenv" in *yes) ;; *) |