Commit | Line | Data |
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2d8adcbd MM |
1 | # Look up an environment variable more securely. |
2 | dnl Copyright 2013-2016 Free Software Foundation, Inc. | |
3 | dnl This file is free software; the Free Software Foundation | |
4 | dnl gives unlimited permission to copy and/or distribute it, | |
5 | dnl with or without modifications, as long as this notice is preserved. | |
6 | ||
7 | AC_DEFUN([gl_FUNC_SECURE_GETENV], | |
8 | [ | |
9 | dnl Persuade glibc <stdlib.h> to declare secure_getenv(). | |
10 | AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) | |
11 | ||
12 | AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) | |
13 | AC_CHECK_FUNCS_ONCE([secure_getenv]) | |
14 | if test $ac_cv_func_secure_getenv = no; then | |
15 | HAVE_SECURE_GETENV=0 | |
16 | fi | |
17 | ]) | |
18 | ||
19 | # Prerequisites of lib/secure_getenv.c. | |
20 | AC_DEFUN([gl_PREREQ_SECURE_GETENV], [ | |
21 | AC_CHECK_FUNCS([__secure_getenv]) | |
22 | if test $ac_cv_func___secure_getenv = no; then | |
23 | AC_CHECK_FUNCS([issetugid]) | |
24 | fi | |
25 | AC_CHECK_FUNCS_ONCE([getuid geteuid getgid getegid]) | |
26 | ]) |