diff options
-rw-r--r-- | Makefile.am | 4 | ||||
-rw-r--r-- | configure.ac | 54 | ||||
-rw-r--r-- | doc/Makefile.am | 5 | ||||
-rw-r--r-- | m4/.gitignore | 5 | ||||
-rw-r--r-- | m4/acx_pthread.m4 (renamed from acinclude.m4) | 0 | ||||
-rw-r--r-- | m4/attributes.m4 | 258 | ||||
-rw-r--r-- | m4/zp_lynx_doc.m4 | 24 |
7 files changed, 304 insertions, 46 deletions
diff --git a/Makefile.am b/Makefile.am index 103f566..1b218c4 100644 --- a/Makefile.am +++ b/Makefile.am @@ -16,6 +16,8 @@ # License along with libasyncns. If not, see # <http://www.gnu.org/licenses/>. +ACLOCAL_AMFLAGS = -I m4 + EXTRA_DIST = bootstrap.sh README LICENSE SUBDIRS=libasyncns doc doxygen @@ -28,7 +30,7 @@ pkgconfig_DATA = libasyncns.pc README: rm -f README $(MAKE) -C doc README - cd $(srcdir) && ln -s doc/README README + ln -s doc/README README homepage: all dist doxygen test -d $$HOME/homepage/private diff --git a/configure.ac b/configure.ac index f4bcf3f..4508930 100644 --- a/configure.ac +++ b/configure.ac @@ -19,10 +19,11 @@ # License along with libasyncns. If not, see # <http://www.gnu.org/licenses/>. -AC_PREREQ(2.59) +AC_PREREQ(2.62) AC_INIT([libasyncns],[0.6],[mznflapaf (at) 0pointer (dot) de]) AC_CONFIG_SRCDIR([libasyncns/asyncns.c]) AC_CONFIG_HEADERS([config.h]) +AC_CONFIG_MACRO_DIR([m4]) AM_INIT_AUTOMAKE([foreign 1.9 -Wall]) AC_SUBST(PACKAGE_URL, [http://0pointer.de/lennart/projects/libasyncns/]) @@ -36,40 +37,24 @@ fi # Checks for programs. AC_PROG_CC +AC_PROG_CC_C99 AC_PROG_CPP -AC_GNU_SOURCE +AC_USE_SYSTEM_EXTENSIONS AC_PROG_INSTALL AC_PROG_LN_S AC_PROG_MAKE_SET AC_PROG_LIBTOOL -test_gcc_flag() { - AC_LANG_CONFTEST([int main() {}]) - $CC -c conftest.c $CFLAGS "$1" -o conftest.o > /dev/null 2> /dev/null - ret=$? - rm -f conftest.o - return $ret -} - -# If using GCC specify some additional parameters -if test "x$GCC" = "xyes" ; then - - DESIRED_FLAGS="-std=c99 -Wall -W -Wextra -pedantic -pipe -Wformat -Wold-style-definition -Wdeclaration-after-statement -Wfloat-equal -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wredundant-decls -Wmissing-noreturn -Wshadow -Wendif-labels -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wcast-align -Wwrite-strings -Winline -Wno-unused-parameter" - - for flag in $DESIRED_FLAGS ; do - AC_MSG_CHECKING([whether $CC accepts $flag]) - if test_gcc_flag $flag ; then - CFLAGS="$CFLAGS $flag" - AC_MSG_RESULT([yes]) - else - AC_MSG_RESULT([no]) - fi - done -fi +DESIRED_FLAGS="-Wall -W -Wextra -pedantic -pipe -Wformat -Wold-style-definition -Wdeclaration-after-statement -Wfloat-equal -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wredundant-decls -Wmissing-noreturn -Wshadow -Wendif-labels -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wcast-align -Wwrite-strings -Winline -Wno-unused-parameter" + +for flag in $DESIRED_FLAGS ; do + CC_CHECK_CFLAGS([$flag], [CFLAGS="$CFLAGS $flag"]) +done # Checks for header files. +AC_HEADER_ASSERT AC_HEADER_STDC AC_HEADER_SYS_WAIT AC_CHECK_HEADERS([arpa/inet.h fcntl.h netdb.h stdlib.h string.h sys/socket.h unistd.h sys/prctl.h netinet/in.h arpa/nameser_compat.h]) @@ -110,24 +95,7 @@ AC_CHECK_FUNC(res_query, , ACX_PTHREAD -# LYNX documentation generation -AC_ARG_ENABLE(lynx, - AC_HELP_STRING(--disable-lynx,Turn off lynx usage for documentation generation), -[case "${enableval}" in - yes) lynx=yes ;; - no) lynx=no ;; - *) AC_MSG_ERROR(bad value ${enableval} for --disable-lynx) ;; -esac],[lynx=yes]) - -if test x$lynx = xyes ; then - AC_CHECK_PROG(have_lynx, lynx, yes, no) - - if test x$have_lynx = xno ; then - AC_MSG_WARN([*** lynx not found, plain text README will not be built ***]) - fi -fi - -AM_CONDITIONAL([USE_LYNX], [test "x$lynx" = xyes]) +ZP_LYNX_DOC AC_CONFIG_FILES([Makefile libasyncns/Makefile doc/Makefile doc/README.html doxygen/Makefile doxygen/doxygen.conf libasyncns.pc]) AC_OUTPUT diff --git a/doc/Makefile.am b/doc/Makefile.am index 0324f02..d850412 100644 --- a/doc/Makefile.am +++ b/doc/Makefile.am @@ -16,8 +16,9 @@ # License along with libasyncns. If not, see # <http://www.gnu.org/licenses/>. -noinst_DATA = README.html README -EXTRA_DIST = $(noinst_DATA) style.css README.html.in +dist_html_DATA = README.html style.css +dist_doc_DATA = README +EXTRA_DIST = README.html.in MAINTAINERCLEANFILES = README.html CLEANFILES = diff --git a/m4/.gitignore b/m4/.gitignore new file mode 100644 index 0000000..38066dd --- /dev/null +++ b/m4/.gitignore @@ -0,0 +1,5 @@ +libtool.m4 +ltoptions.m4 +ltsugar.m4 +ltversion.m4 +lt~obsolete.m4 diff --git a/acinclude.m4 b/m4/acx_pthread.m4 index bedf51c..bedf51c 100644 --- a/acinclude.m4 +++ b/m4/acx_pthread.m4 diff --git a/m4/attributes.m4 b/m4/attributes.m4 new file mode 100644 index 0000000..9c4a0c8 --- /dev/null +++ b/m4/attributes.m4 @@ -0,0 +1,258 @@ +dnl Macros to check the presence of generic (non-typed) symbols. +dnl Copyright (c) 2006-2007 Diego Pettenò <flameeyes@gmail.com> +dnl Copyright (c) 2006-2007 xine project +dnl +dnl This program is free software; you can redistribute it and/or modify +dnl it under the terms of the GNU General Public License as published by +dnl the Free Software Foundation; either version 2, or (at your option) +dnl any later version. +dnl +dnl This program is distributed in the hope that it will be useful, +dnl but WITHOUT ANY WARRANTY; without even the implied warranty of +dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +dnl GNU General Public License for more details. +dnl +dnl You should have received a copy of the GNU General Public License +dnl along with this program; if not, write to the Free Software +dnl Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +dnl 02110-1301, USA. +dnl +dnl As a special exception, the copyright owners of the +dnl macro gives unlimited permission to copy, distribute and modify the +dnl configure scripts that are the output of Autoconf when processing the +dnl Macro. You need not follow the terms of the GNU General Public +dnl License when using or distributing such scripts, even though portions +dnl of the text of the Macro appear in them. The GNU General Public +dnl License (GPL) does govern all other use of the material that +dnl constitutes the Autoconf Macro. +dnl +dnl This special exception to the GPL applies to versions of the +dnl Autoconf Macro released by this project. When you make and +dnl distribute a modified version of the Autoconf Macro, you may extend +dnl this special exception to the GPL to apply to your modified version as +dnl well. + +AC_DEFUN([CC_CHECK_CFLAGS_SILENT], [ + AC_CACHE_VAL(AS_TR_SH([cc_cv_cflags_$1]), + [ac_save_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS $1" + AC_COMPILE_IFELSE([int a;], + [eval "AS_TR_SH([cc_cv_cflags_$1])='yes'"], + [eval "AS_TR_SH([cc_cv_cflags_$1])='no'"]) + CFLAGS="$ac_save_CFLAGS" + ]) + + AS_IF([eval test x$]AS_TR_SH([cc_cv_cflags_$1])[ = xyes], + [$2], [$3]) +]) + +AC_DEFUN([CC_CHECK_CFLAGS], [ + AC_CACHE_CHECK([if $CC supports $1 flag], + AS_TR_SH([cc_cv_cflags_$1]), + CC_CHECK_CFLAGS_SILENT([$1]) dnl Don't execute actions here! + ) + + AS_IF([eval test x$]AS_TR_SH([cc_cv_cflags_$1])[ = xyes], + [$2], [$3]) +]) + +AC_DEFUN([CC_CHECK_LDFLAGS], [ + AC_CACHE_CHECK([if $CC supports $1 flag], + AS_TR_SH([cc_cv_ldflags_$1]), + [ac_save_LDFLAGS="$LDFLAGS" + LDFLAGS="$LDFLAGS $1" + AC_LINK_IFELSE([int main() { return 1; }], + [eval "AS_TR_SH([cc_cv_ldflags_$1])='yes'"], + [eval "AS_TR_SH([cc_cv_ldflags_$1])="]) + LDFLAGS="$ac_save_LDFLAGS" + ]) + + AS_IF([eval test x$]AS_TR_SH([cc_cv_ldflags_$1])[ = xyes], + [$2], [$3]) +]) + +dnl Check for a -Werror flag or equivalent. -Werror is the GCC +dnl and ICC flag that tells the compiler to treat all the warnings +dnl as fatal. We usually need this option to make sure that some +dnl constructs (like attributes) are not simply ignored. +dnl +dnl Other compilers don't support -Werror per se, but they support +dnl an equivalent flag: +dnl - Sun Studio compiler supports -errwarn=%all +AC_DEFUN([CC_CHECK_WERROR], [ + AC_CACHE_CHECK( + [for $CC way to treat warnings as errors], + [cc_cv_werror], + [CC_CHECK_CFLAGS_SILENT([-Werror], [cc_cv_werror=-Werror], + [CC_CHECK_CFLAGS_SILENT([-errwarn=%all], [cc_cv_werror=-errwarn=%all])]) + ]) +]) + +AC_DEFUN([CC_CHECK_ATTRIBUTE], [ + AC_REQUIRE([CC_CHECK_WERROR]) + AC_CACHE_CHECK([if $CC supports __attribute__(( ifelse([$2], , [$1], [$2]) ))], + AS_TR_SH([cc_cv_attribute_$1]), + [ac_save_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS $cc_cv_werror" + AC_COMPILE_IFELSE([$3], + [eval "AS_TR_SH([cc_cv_attribute_$1])='yes'"], + [eval "AS_TR_SH([cc_cv_attribute_$1])='no'"]) + CFLAGS="$ac_save_CFLAGS" + ]) + + AS_IF([eval test x$]AS_TR_SH([cc_cv_attribute_$1])[ = xyes], + [AC_DEFINE( + AS_TR_CPP([SUPPORT_ATTRIBUTE_$1]), 1, + [Define this if the compiler supports __attribute__(( ifelse([$2], , [$1], [$2]) ))] + ) + $4], + [$5]) +]) + +AC_DEFUN([CC_ATTRIBUTE_CONSTRUCTOR], [ + CC_CHECK_ATTRIBUTE( + [constructor],, + [void __attribute__((constructor)) ctor() { int a; }], + [$1], [$2]) +]) + +AC_DEFUN([CC_ATTRIBUTE_FORMAT], [ + CC_CHECK_ATTRIBUTE( + [format], [format(printf, n, n)], + [void __attribute__((format(printf, 1, 2))) printflike(const char *fmt, ...) { fmt = (void *)0; }], + [$1], [$2]) +]) + +AC_DEFUN([CC_ATTRIBUTE_FORMAT_ARG], [ + CC_CHECK_ATTRIBUTE( + [format_arg], [format_arg(printf)], + [char *__attribute__((format_arg(1))) gettextlike(const char *fmt) { fmt = (void *)0; }], + [$1], [$2]) +]) + +AC_DEFUN([CC_ATTRIBUTE_VISIBILITY], [ + CC_CHECK_ATTRIBUTE( + [visibility_$1], [visibility("$1")], + [void __attribute__((visibility("$1"))) $1_function() { }], + [$2], [$3]) +]) + +AC_DEFUN([CC_ATTRIBUTE_NONNULL], [ + CC_CHECK_ATTRIBUTE( + [nonnull], [nonnull()], + [void __attribute__((nonnull())) some_function(void *foo, void *bar) { foo = (void*)0; bar = (void*)0; }], + [$1], [$2]) +]) + +AC_DEFUN([CC_ATTRIBUTE_UNUSED], [ + CC_CHECK_ATTRIBUTE( + [unused], , + [void some_function(void *foo, __attribute__((unused)) void *bar);], + [$1], [$2]) +]) + +AC_DEFUN([CC_ATTRIBUTE_SENTINEL], [ + CC_CHECK_ATTRIBUTE( + [sentinel], , + [void some_function(void *foo, ...) __attribute__((sentinel));], + [$1], [$2]) +]) + +AC_DEFUN([CC_ATTRIBUTE_DEPRECATED], [ + CC_CHECK_ATTRIBUTE( + [deprecated], , + [void some_function(void *foo, ...) __attribute__((deprecated));], + [$1], [$2]) +]) + +AC_DEFUN([CC_ATTRIBUTE_ALIAS], [ + CC_CHECK_ATTRIBUTE( + [alias], [weak, alias], + [void other_function(void *foo) { } + void some_function(void *foo) __attribute__((weak, alias("other_function")));], + [$1], [$2]) +]) + +AC_DEFUN([CC_ATTRIBUTE_MALLOC], [ + CC_CHECK_ATTRIBUTE( + [malloc], , + [void * __attribute__((malloc)) my_alloc(int n);], + [$1], [$2]) +]) + +AC_DEFUN([CC_ATTRIBUTE_PACKED], [ + CC_CHECK_ATTRIBUTE( + [packed], , + [struct astructure { char a; int b; long c; void *d; } __attribute__((packed));], + [$1], [$2]) +]) + +AC_DEFUN([CC_ATTRIBUTE_CONST], [ + CC_CHECK_ATTRIBUTE( + [const], , + [int __attribute__((const)) twopow(int n) { return 1 << n; } ], + [$1], [$2]) +]) + +AC_DEFUN([CC_FLAG_VISIBILITY], [ + AC_REQUIRE([CC_CHECK_WERROR]) + AC_CACHE_CHECK([if $CC supports -fvisibility=hidden], + [cc_cv_flag_visibility], + [cc_flag_visibility_save_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS $cc_cv_werror" + CC_CHECK_CFLAGS_SILENT([-fvisibility=hidden], + cc_cv_flag_visibility='yes', + cc_cv_flag_visibility='no') + CFLAGS="$cc_flag_visibility_save_CFLAGS"]) + + AS_IF([test "x$cc_cv_flag_visibility" = "xyes"], + [AC_DEFINE([SUPPORT_FLAG_VISIBILITY], 1, + [Define this if the compiler supports the -fvisibility flag]) + $1], + [$2]) +]) + +AC_DEFUN([CC_FUNC_EXPECT], [ + AC_REQUIRE([CC_CHECK_WERROR]) + AC_CACHE_CHECK([if compiler has __builtin_expect function], + [cc_cv_func_expect], + [ac_save_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS $cc_cv_werror" + AC_COMPILE_IFELSE( + [int some_function() { + int a = 3; + return (int)__builtin_expect(a, 3); + }], + [cc_cv_func_expect=yes], + [cc_cv_func_expect=no]) + CFLAGS="$ac_save_CFLAGS" + ]) + + AS_IF([test "x$cc_cv_func_expect" = "xyes"], + [AC_DEFINE([SUPPORT__BUILTIN_EXPECT], 1, + [Define this if the compiler supports __builtin_expect() function]) + $1], + [$2]) +]) + +AC_DEFUN([CC_ATTRIBUTE_ALIGNED], [ + AC_REQUIRE([CC_CHECK_WERROR]) + AC_CACHE_CHECK([highest __attribute__ ((aligned ())) supported], + [cc_cv_attribute_aligned], + [ac_save_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS $cc_cv_werror" + for cc_attribute_align_try in 64 32 16 8 4 2; do + AC_COMPILE_IFELSE([ + int main() { + static char c __attribute__ ((aligned($cc_attribute_align_try))) = 0; + return c; + }], [cc_cv_attribute_aligned=$cc_attribute_align_try; break]) + done + CFLAGS="$ac_save_CFLAGS" + ]) + + if test "x$cc_cv_attribute_aligned" != "x"; then + AC_DEFINE_UNQUOTED([ATTRIBUTE_ALIGNED_MAX], [$cc_cv_attribute_aligned], + [Define the highest alignment supported]) + fi +]) diff --git a/m4/zp_lynx_doc.m4 b/m4/zp_lynx_doc.m4 new file mode 100644 index 0000000..955a6ca --- /dev/null +++ b/m4/zp_lynx_doc.m4 @@ -0,0 +1,24 @@ +dnl Macro for enabling LYNX-based documentation generation + +AC_DEFUN([ZP_LYNX_DOC], [ + AC_ARG_ENABLE(lynx, + AS_HELP_STRING([--disable-lynx], + [Turn off lynx usage for documentation generation]),, + [enable_lynx=yes]) + + case "${enable_lynx}" in + yes) + AC_CHECK_PROG(have_lynx, lynx, yes, no) + + if test x$have_lynx = xno ; then + AC_MSG_WARN([*** lynx not found, plain text README will not be built ***]) + fi + ;; + no) + have_lynx=no ;; + *) + AC_MSG_ERROR(bad value ${enableval} for --disable-lynx) ;; + esac + + AM_CONDITIONAL([USE_LYNX], [test "x$have_lynx" = xyes]) +]) |