diff options
Diffstat (limited to 'm4/setenv.m4')
| -rw-r--r-- | m4/setenv.m4 | 38 |
1 files changed, 29 insertions, 9 deletions
diff --git a/m4/setenv.m4 b/m4/setenv.m4 index a1f30bc47..e1931e7eb 100644 --- a/m4/setenv.m4 +++ b/m4/setenv.m4 @@ -1,4 +1,4 @@ -# setenv.m4 serial 25 +# setenv.m4 serial 26 dnl Copyright (C) 2001-2004, 2006-2012 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -7,6 +7,7 @@ dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_SETENV], [ AC_REQUIRE([gl_FUNC_SETENV_SEPARATE]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles if test $ac_cv_func_setenv = no; then HAVE_SETENV=0 else @@ -33,10 +34,19 @@ AC_DEFUN([gl_FUNC_SETENV], return result; ]])], [gl_cv_func_setenv_works=yes], [gl_cv_func_setenv_works=no], - [gl_cv_func_setenv_works="guessing no"])]) - if test "$gl_cv_func_setenv_works" != yes; then - REPLACE_SETENV=1 - fi + [case "$host_os" in + # Guess yes on glibc systems. + *-gnu*) gl_cv_func_setenv_works="guessing yes" ;; + # If we don't know, assume the worst. + *) gl_cv_func_setenv_works="guessing no" ;; + esac + ])]) + case "$gl_cv_func_setenv_works" in + *yes) ;; + *) + REPLACE_SETENV=1 + ;; + esac fi ]) @@ -56,6 +66,7 @@ AC_DEFUN([gl_FUNC_SETENV_SEPARATE], AC_DEFUN([gl_FUNC_UNSETENV], [ AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CHECK_DECLS_ONCE([unsetenv]) if test $ac_cv_have_decl_unsetenv = no; then HAVE_DECL_UNSETENV=0 @@ -115,10 +126,19 @@ int unsetenv (const char *name); if (getenv ("a")) return 6; ]])], [gl_cv_func_unsetenv_works=yes], [gl_cv_func_unsetenv_works=no], - [gl_cv_func_unsetenv_works="guessing no"])]) - if test "$gl_cv_func_unsetenv_works" != yes; then - REPLACE_UNSETENV=1 - fi + [case "$host_os" in + # Guess yes on glibc systems. + *-gnu*) gl_cv_func_unsetenv_works="guessing yes" ;; + # If we don't know, assume the worst. + *) gl_cv_func_unsetenv_works="guessing no" ;; + esac + ])]) + case "$gl_cv_func_unsetenv_works" in + *yes) ;; + *) + REPLACE_UNSETENV=1 + ;; + esac fi ]) |