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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-13 21:11:59 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-13 21:11:59 +0000
commit3cd01b932e1c85394272ae64fae67ebeda92fb00 (patch)
treec5a3115d710afc1879ddea5349362a2bc651733c /m4/pdns_check_os.m4
parentInitial commit. (diff)
downloaddnsdist-3cd01b932e1c85394272ae64fae67ebeda92fb00.tar.xz
dnsdist-3cd01b932e1c85394272ae64fae67ebeda92fb00.zip
Adding upstream version 1.8.3.upstream/1.8.3
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'm4/pdns_check_os.m4')
-rw-r--r--m4/pdns_check_os.m463
1 files changed, 63 insertions, 0 deletions
diff --git a/m4/pdns_check_os.m4 b/m4/pdns_check_os.m4
new file mode 100644
index 0000000..bb5f2fd
--- /dev/null
+++ b/m4/pdns_check_os.m4
@@ -0,0 +1,63 @@
+AC_DEFUN([PDNS_CHECK_OS],[
+ THREADFLAGS=""
+
+ case "$host_os" in
+ solaris2.1*)
+ LIBS="-lposix4 -lpthread $LIBS"
+ CXXFLAGS="-D_REENTRANT $CXXFLAGS"
+ have_solaris="yes"
+ ;;
+ solaris2.8 | solaris2.9 )
+ AC_DEFINE(NEED_POSIX_TYPEDEF,,[If POSIX typedefs need to be defined])
+ AC_DEFINE(NEED_INET_NTOP_PROTO,,[If your OS is so broken that it needs an additional prototype])
+ LIBS="-lposix4 -lpthread $LIBS"
+ CXXFLAGS="-D_REENTRANT $CXXFLAGS"
+ have_solaris="yes"
+ ;;
+ linux*)
+ THREADFLAGS="-pthread"
+ have_linux="yes"
+ ;;
+ darwin*)
+ CXXFLAGS="-D__APPLE_USE_RFC_3542 -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE $CXXFLAGS"
+ have_darwin="yes"
+ ;;
+ freebsd*)
+ THREADFLAGS="-pthread"
+ have_freebsd="yes"
+ ;;
+ openbsd*)
+ THREADFLAGS="-pthread"
+ have_openbsd="yes"
+ ;;
+ *)
+ LDFLAGS="-pthread $LDFLAGS"
+ CXXFLAGS="-pthread $CXXFLAGS"
+ ;;
+ esac
+
+ AM_CONDITIONAL([HAVE_FREEBSD], [test "x$have_freebsd" = "xyes"])
+ AM_CONDITIONAL([HAVE_OPENBSD], [test "x$have_openbsd" = "xyes"])
+ AM_CONDITIONAL([HAVE_LINUX], [test "x$have_linux" = "xyes"])
+ AM_CONDITIONAL([HAVE_DARWIN], [test "x$have_darwin" = "xyes"])
+ AM_CONDITIONAL([HAVE_SOLARIS], [test "x$have_solaris" = "xyes"])
+
+ AC_MSG_CHECKING([whether -latomic is needed for __atomic builtins])
+ AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM([[#include <stdint.h>]],
+ [[uint64_t val = 0; __atomic_add_fetch(&val, 1, __ATOMIC_RELAXED);]]
+ )],
+ [AC_MSG_RESULT([no])],
+ [LIBS="$LIBS -latomic"
+ AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM([[#include <stdint.h>]],
+ [[uint64_t val = 0; __atomic_add_fetch(&val, 1, __ATOMIC_RELAXED);]]
+ )],
+ [AC_MSG_RESULT([yes])],
+ [AC_MSG_FAILURE([libatomic needed, but linking with -latomic failed, cannot continue])]
+ )]
+ )
+
+ AC_SUBST(THREADFLAGS)
+ AC_SUBST([DYNLINKFLAGS], [-export-dynamic])
+])