12
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AC_REQUIRE([gl_COMMON_BODY])
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AC_DEFUN([gl_COMMON_BODY], [
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AH_VERBATIM([_Noreturn],
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[/* The _Noreturn keyword of draft C1X. */
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# if (3 <= __GNUC__ || (__GNUC__ == 2 && 8 <= __GNUC_MINOR__) \
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|| 0x5110 <= __SUNPRO_C)
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# define _Noreturn __attribute__ ((__noreturn__))
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# elif defined _MSC_VER && 1200 <= _MSC_VER
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# define _Noreturn __declspec (noreturn)
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AH_VERBATIM([isoc99_inline],
16
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[/* Work around a bug in Apple GCC 4.0.1 build 5465: In C99 mode, it supports
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the ISO C 99 semantics of 'extern inline' (unlike the GNU C semantics of
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47
/* The name _UNUSED_PARAMETER_ is an earlier spelling, although the name
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48
is a misnomer outside of parameter lists. */
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49
#define _UNUSED_PARAMETER_ _GL_UNUSED
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/* The __pure__ attribute was added in gcc 2.96. */
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#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
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# define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__))
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# define _GL_ATTRIBUTE_PURE /* empty */
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/* The __const__ attribute was added in gcc 2.95. */
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#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95)
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# define _GL_ATTRIBUTE_CONST __attribute__ ((__const__))
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# define _GL_ATTRIBUTE_CONST /* empty */
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65
dnl Preparation for running test programs:
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66
dnl Tell glibc to write diagnostics from -D_FORTIFY_SOURCE=2 to stderr, not
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# expands to a C preprocessor expression that evaluates to 1 or 0, depending
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75
# whether a gnulib module that has been requested shall be considered present
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AC_DEFUN([gl_MODULE_INDICATOR_CONDITION], [1])
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m4_define([gl_MODULE_INDICATOR_CONDITION], [1])
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# gl_MODULE_INDICATOR_SET_VARIABLE([modulename])
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# sets the shell variable that indicates the presence of the given module to
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# a C preprocessor expression that will evaluate to 1.
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82
AC_DEFUN([gl_MODULE_INDICATOR_SET_VARIABLE],
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GNULIB_[]m4_translit([[$1]],
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[abcdefghijklmnopqrstuvwxyz./-],
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[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=gl_MODULE_INDICATOR_CONDITION
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gl_MODULE_INDICATOR_SET_VARIABLE_AUX(
85
[GNULIB_[]m4_translit([[$1]],
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[abcdefghijklmnopqrstuvwxyz./-],
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[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])],
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[gl_MODULE_INDICATOR_CONDITION])
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# gl_MODULE_INDICATOR_SET_VARIABLE_AUX([variable])
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# modifies the shell variable to include the gl_MODULE_INDICATOR_CONDITION.
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# The shell variable's value is a C preprocessor expression that evaluates
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AC_DEFUN([gl_MODULE_INDICATOR_SET_VARIABLE_AUX],
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m4_if(m4_defn([gl_MODULE_INDICATOR_CONDITION]), [1],
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dnl Simplify the expression VALUE || 1 to 1.
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[gl_MODULE_INDICATOR_SET_VARIABLE_AUX_OR([$1],
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[gl_MODULE_INDICATOR_CONDITION])])
106
# gl_MODULE_INDICATOR_SET_VARIABLE_AUX_OR([variable], [condition])
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# modifies the shell variable to include the given condition. The shell
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# variable's value is a C preprocessor expression that evaluates to 0 or 1.
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AC_DEFUN([gl_MODULE_INDICATOR_SET_VARIABLE_AUX_OR],
111
dnl Simplify the expression 1 || CONDITION to 1.
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if test "$[]$1" != 1; then
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dnl Simplify the expression 0 || CONDITION to CONDITION.
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if test "$[]$1" = 0; then
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# gl_MODULE_INDICATOR([modulename])
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169
AC_DEFUN([gl_ASSERT_NO_GNULIB_POSIXCHECK],
111
171
dnl Override gl_WARN_ON_USE_PREPARE.
112
AC_DEFUN([gl_WARN_ON_USE_PREPARE], [])
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dnl But hide this definition from 'aclocal'.
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AC_DEFUN([gl_W][ARN_ON_USE_PREPARE], [])
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176
# gl_ASSERT_NO_GNULIB_TESTS
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211
[m4_define([AS_VAR_IF],
151
212
[AS_IF([test x"AS_VAR_GET([$1])" = x""$2], [$3], [$4])])])
215
# Modifies the value of the shell variable CC in an attempt to make $CC
216
# understand ISO C99 source code.
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# This is like AC_PROG_CC_C99, except that
218
# - AC_PROG_CC_C99 did not exist in Autoconf versions < 2.60,
219
# - AC_PROG_CC_C99 does not mix well with AC_PROG_CC_STDC
220
# <http://lists.gnu.org/archive/html/bug-gnulib/2011-09/msg00367.html>,
221
# but many more packages use AC_PROG_CC_STDC than AC_PROG_CC_C99
222
# <http://lists.gnu.org/archive/html/bug-gnulib/2011-09/msg00441.html>.
223
# Remaining problems:
224
# - When AC_PROG_CC_STDC is invoked twice, it adds the C99 enabling options
226
# <http://lists.gnu.org/archive/html/bug-gnulib/2011-09/msg00431.html>.
227
# - AC_PROG_CC_STDC is likely to change when C1X is an ISO standard.
228
AC_DEFUN([gl_PROG_CC_C99],
230
dnl Change that version number to the minimum Autoconf version that supports
231
dnl mixing AC_PROG_CC_C99 calls with AC_PROG_CC_STDC calls.
232
m4_version_prereq([9.0],
233
[AC_REQUIRE([AC_PROG_CC_C99])],
234
[AC_REQUIRE([AC_PROG_CC_STDC])])
238
# Determines the values for AR, ARFLAGS, RANLIB that fit with the compiler.
239
# The user can set the variables AR, ARFLAGS, RANLIB if he wants to override
241
AC_DEFUN([gl_PROG_AR_RANLIB],
243
dnl Minix 3 comes with two toolchains: The Amsterdam Compiler Kit compiler
244
dnl as "cc", and GCC as "gcc". They have different object file formats and
245
dnl library formats. In particular, the GNU binutils programs ar, ranlib
246
dnl produce libraries that work only with gcc, not with cc.
247
AC_REQUIRE([AC_PROG_CC])
248
AC_CACHE_CHECK([for Minix Amsterdam compiler], [gl_cv_c_amsterdam_compiler],
250
AC_EGREP_CPP([Amsterdam],
256
[gl_cv_c_amsterdam_compiler=yes],
257
[gl_cv_c_amsterdam_compiler=no])
259
if test -z "$AR"; then
260
if test $gl_cv_c_amsterdam_compiler = yes; then
262
if test -z "$ARFLAGS"; then
266
dnl Use the Automake-documented default values for AR and ARFLAGS,
267
dnl but prefer ${host}-ar over ar (useful for cross-compiling).
268
AC_CHECK_TOOL([AR], [ar], [ar])
269
if test -z "$ARFLAGS"; then
274
if test -z "$ARFLAGS"; then
280
if test -z "$RANLIB"; then
281
if test $gl_cv_c_amsterdam_compiler = yes; then
284
dnl Use the ranlib program if it is available.
153
291
# AC_PROG_MKDIR_P
154
292
# is a backport of autoconf-2.60's AC_PROG_MKDIR_P, with a fix
155
293
# for interoperability with automake-1.9.6 from autoconf-2.62.
added
removed
gnulib/m4/gnulib-common.m4
