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Diffstat (limited to 'm4/putenv.m4')
| -rw-r--r-- | m4/putenv.m4 | 60 |
1 files changed, 0 insertions, 60 deletions
diff --git a/m4/putenv.m4 b/m4/putenv.m4 deleted file mode 100644 index e38f8c56940..00000000000 --- a/m4/putenv.m4 +++ /dev/null @@ -1,60 +0,0 @@ -# putenv.m4 serial 24 -dnl Copyright (C) 2002-2020 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. - -dnl From Jim Meyering. -dnl -dnl Check whether putenv ("FOO") removes FOO from the environment. -dnl The putenv in libc on at least SunOS 4.1.4 does *not* do that. - -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; - - /* Try to remove it. */ - if (putenv ("CONFTEST_putenv")) - return 2; - - /* 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 "$host_os" in - # Guess yes on glibc systems. - *-gnu* | gnu*) gl_cv_func_svid_putenv="guessing yes" ;; - # Guess yes on musl systems. - *-musl*) gl_cv_func_svid_putenv="guessing yes" ;; - # Guess no on native Windows. - mingw*) gl_cv_func_svid_putenv="guessing no" ;; - # If we don't know, obey --enable-cross-guesses. - *) gl_cv_func_svid_putenv="$gl_cross_guess_normal" ;; - esac - ]) - ]) - case "$gl_cv_func_svid_putenv" in - *yes) ;; - *) - REPLACE_PUTENV=1 - ;; - esac -]) - -# Prerequisites of lib/putenv.c. -AC_DEFUN([gl_PREREQ_PUTENV], -[ - AC_CHECK_DECLS([_putenv]) -]) |