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author | Marcus Brinkmann <mb@g10code.com> | 2006-07-04 11:44:01 +0000 |
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committer | Marcus Brinkmann <mb@g10code.com> | 2006-07-04 11:44:01 +0000 |
commit | 14084967ee4e88bcb2e2c6ea00688fcffc79d320 (patch) | |
tree | 7f63dd59e902b63fc8f5d56b5c8027597f917a1c /m4/onceonly.m4 | |
parent | eb9ebf3b7f1bceec03fa8785aa1138be29a73ff2 (diff) | |
download | libgcrypt-14084967ee4e88bcb2e2c6ea00688fcffc79d320.tar.gz |
2006-07-04 Marcus Brinkmann <marcus@g10code.de>
* configure.ac: Call gl_TYPE_SOCKLEN_T instead of the other
socklen_t checks.
m4/
2006-07-04 Marcus Brinkmann <marcus@g10code.de>
* sys_socket_h.m4, socklen.m4, onceonly.m4: New files from gnulib.
src/
2006-07-04 Marcus Brinkmann <marcus@g10code.de>
* gcrypt.h [!HAVE_SYS_SOCKET_H]: Do not include sys/socket.h, but
the appropriate windows socket header.
Diffstat (limited to 'm4/onceonly.m4')
-rw-r--r-- | m4/onceonly.m4 | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/m4/onceonly.m4 b/m4/onceonly.m4 new file mode 100644 index 00000000..6d913faf --- /dev/null +++ b/m4/onceonly.m4 @@ -0,0 +1,66 @@ +# onceonly.m4 serial 4 (gettext-0.15) +dnl Copyright (C) 2002-2003, 2006 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 This file defines some "once only" variants of standard autoconf macros. +dnl AC_CHECK_HEADERS_ONCE like AC_CHECK_HEADERS +dnl AC_CHECK_FUNCS_ONCE like AC_CHECK_FUNCS +dnl AC_CHECK_DECLS_ONCE like AC_CHECK_DECLS +dnl AC_REQUIRE([AC_HEADER_STDC]) like AC_HEADER_STDC +dnl The advantage is that the check for each of the headers/functions/decls +dnl will be put only once into the 'configure' file. It keeps the size of +dnl the 'configure' file down, and avoids redundant output when 'configure' +dnl is run. +dnl The drawback is that the checks cannot be conditionalized. If you write +dnl if some_condition; then gl_CHECK_HEADERS(stdlib.h); fi +dnl inside an AC_DEFUNed function, the gl_CHECK_HEADERS macro call expands to +dnl empty, and the check will be inserted before the body of the AC_DEFUNed +dnl function. + +dnl This file is only needed in autoconf <= 2.59. Newer versions of autoconf +dnl have this macro built-in. But about AC_CHECK_DECLS_ONCE: note that in +dnl autoconf >= 2.60 the symbol separator is a comma, whereas here it is +dnl whitespace. + +dnl Autoconf version 2.57 or newer is recommended. +AC_PREREQ(2.54) + +# AC_CHECK_HEADERS_ONCE(HEADER1 HEADER2 ...) is a once-only variant of +# AC_CHECK_HEADERS(HEADER1 HEADER2 ...). +AC_DEFUN([AC_CHECK_HEADERS_ONCE], [ + : + AC_FOREACH([gl_HEADER_NAME], [$1], [ + AC_DEFUN([gl_CHECK_HEADER_]m4_quote(translit(m4_defn([gl_HEADER_NAME]), + [-./], [___])), [ + AC_CHECK_HEADERS(gl_HEADER_NAME) + ]) + AC_REQUIRE([gl_CHECK_HEADER_]m4_quote(translit(gl_HEADER_NAME, + [-./], [___]))) + ]) +]) + +# AC_CHECK_FUNCS_ONCE(FUNC1 FUNC2 ...) is a once-only variant of +# AC_CHECK_FUNCS(FUNC1 FUNC2 ...). +AC_DEFUN([AC_CHECK_FUNCS_ONCE], [ + : + AC_FOREACH([gl_FUNC_NAME], [$1], [ + AC_DEFUN([gl_CHECK_FUNC_]m4_defn([gl_FUNC_NAME]), [ + AC_CHECK_FUNCS(m4_defn([gl_FUNC_NAME])) + ]) + AC_REQUIRE([gl_CHECK_FUNC_]m4_defn([gl_FUNC_NAME])) + ]) +]) + +# AC_CHECK_DECLS_ONCE(DECL1 DECL2 ...) is a once-only variant of +# AC_CHECK_DECLS(DECL1, DECL2, ...). +AC_DEFUN([AC_CHECK_DECLS_ONCE], [ + : + AC_FOREACH([gl_DECL_NAME], [$1], [ + AC_DEFUN([gl_CHECK_DECL_]m4_defn([gl_DECL_NAME]), [ + AC_CHECK_DECLS(m4_defn([gl_DECL_NAME])) + ]) + AC_REQUIRE([gl_CHECK_DECL_]m4_defn([gl_DECL_NAME])) + ]) +]) |