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e7b01df5cf
This incorporates: 2016-05-30 Use GCC_LINT, not lint 2016-05-29 secure_getenv: Port to many more platforms. * doc/misc/texinfo.tex, lib/secure_getenv.c, lib/verify.h: * m4/secure_getenv.m4: Copy from gnulib.
27 lines
852 B
Plaintext
27 lines
852 B
Plaintext
# Look up an environment variable more securely.
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dnl Copyright 2013-2016 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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AC_DEFUN([gl_FUNC_SECURE_GETENV],
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[
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dnl Persuade glibc <stdlib.h> to declare secure_getenv().
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AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
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AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
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AC_CHECK_FUNCS_ONCE([secure_getenv])
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if test $ac_cv_func_secure_getenv = no; then
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HAVE_SECURE_GETENV=0
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fi
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])
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# Prerequisites of lib/secure_getenv.c.
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AC_DEFUN([gl_PREREQ_SECURE_GETENV], [
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AC_CHECK_FUNCS([__secure_getenv])
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if test $ac_cv_func___secure_getenv = no; then
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AC_CHECK_FUNCS([issetugid])
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fi
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AC_CHECK_FUNCS_ONCE([getuid geteuid getgid getegid])
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])
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