[3/7] RFC: configury fixes

[Tom Tromey]

This patch just adds the needed configure changes.

However, I haven't yet added the check for __thread.  This check would
be needed in BFD as well.

Tom

>From 4774142bbb29488c07d9b3a41bd4adfe461bbec8 Mon Sep 17 00:00:00 2001
From: Tom Tromey <tromey@redhat.com>
Date: Fri, 11 Jun 2010 14:57:03 -0600
Subject: [PATCH 3/7] configury changes

2010-06-14  Tom Tromey  <tromey@redhat.com>

	* configure.ac: Check for -lpthread, pthread.h, pthread_create.
	* config.in: Rebuild.
	* configure: Rebuild.
---
 gdb/config.in    |    6 +++++
 gdb/configure    |   61 ++++++++++++++++++++++++++++++++++++++++++++++++++++-
 gdb/configure.ac |    6 +++-
 3 files changed, 69 insertions(+), 4 deletions(-)

diff --git a/gdb/config.in b/gdb/config.in
index 76cb363..b617c3f 100644
--- a/gdb/config.in
+++ b/gdb/config.in
@@ -353,6 +353,12 @@
 /* Define if <sys/procfs.h> has pstatus_t. */
 #undef HAVE_PSTATUS_T
 
+/* Define to 1 if you have the `pthread_create' function. */
+#undef HAVE_PTHREAD_CREATE
+
+/* Define to 1 if you have the <pthread.h> header file. */
+#undef HAVE_PTHREAD_H
+
 /* Define if sys/ptrace.h defines the PTRACE_GETFPXREGS request. */
 #undef HAVE_PTRACE_GETFPXREGS
 
diff --git a/gdb/configure b/gdb/configure
index f3cb23a..072c3c1 100755
--- a/gdb/configure
+++ b/gdb/configure
@@ -9058,6 +9058,63 @@ fi
 fi
 
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing pthread_create" >&5
+$as_echo_n "checking for library containing pthread_create... " >&6; }
+if test "${ac_cv_search_pthread_create+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char pthread_create ();
+int
+main ()
+{
+return pthread_create ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' pthread; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_pthread_create=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if test "${ac_cv_search_pthread_create+set}" = set; then :
+  break
+fi
+done
+if test "${ac_cv_search_pthread_create+set}" = set; then :
+
+else
+  ac_cv_search_pthread_create=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_pthread_create" >&5
+$as_echo "$ac_cv_search_pthread_create" >&6; }
+ac_res=$ac_cv_search_pthread_create
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+
+fi
+
+
 # Some systems (e.g. Solaris) have `gethostbyname' in libnsl.
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing gethostbyname" >&5
 $as_echo_n "checking for library containing gethostbyname... " >&6; }
@@ -11251,7 +11308,7 @@ for ac_header in nlist.h machine/reg.h poll.h sys/poll.h proc_service.h \
 		  sys/resource.h sys/procfs.h sys/ptrace.h ptrace.h \
 		  sys/reg.h sys/debugreg.h sys/select.h sys/syscall.h \
 		  sys/types.h sys/wait.h wait.h termios.h termio.h \
-		  sgtty.h unistd.h elf_hp.h ctype.h time.h locale.h
+		  sgtty.h unistd.h elf_hp.h ctype.h time.h locale.h pthread.h
 do :
   as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
 ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
@@ -12508,7 +12565,7 @@ for ac_func in canonicalize_file_name realpath getrusage getuid \
 		getgid pipe poll pread64 sbrk setpgid setpgrp setsid \
 		sigaction sigprocmask sigsetmask socketpair syscall \
 		ttrace wborder setlocale iconvlist libiconvlist btowc \
-		setrlimit getrlimit posix_madvise
+		setrlimit getrlimit posix_madvise pthread_create
 do :
   as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
 ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
diff --git a/gdb/configure.ac b/gdb/configure.ac
index 6d140cb..bf9a5d7 100644
--- a/gdb/configure.ac
+++ b/gdb/configure.ac
@@ -419,6 +419,8 @@ AC_CHECK_LIB(m, main)
 AC_CHECK_FUNC(wctype, [],
   [AC_CHECK_LIB(w, wctype)])
 
+AC_SEARCH_LIBS(pthread_create, pthread)
+
 # Some systems (e.g. Solaris) have `gethostbyname' in libnsl.
 AC_SEARCH_LIBS(gethostbyname, nsl)
 
@@ -874,7 +876,7 @@ AC_CHECK_HEADERS([nlist.h machine/reg.h poll.h sys/poll.h proc_service.h \
 		  sys/resource.h sys/procfs.h sys/ptrace.h ptrace.h \
 		  sys/reg.h sys/debugreg.h sys/select.h sys/syscall.h \
 		  sys/types.h sys/wait.h wait.h termios.h termio.h \
-		  sgtty.h unistd.h elf_hp.h ctype.h time.h locale.h])
+		  sgtty.h unistd.h elf_hp.h ctype.h time.h locale.h pthread.h])
 AC_CHECK_HEADERS(link.h, [], [],
 [#if HAVE_SYS_TYPES_H
 # include <sys/types.h>
@@ -955,7 +957,7 @@ AC_CHECK_FUNCS([canonicalize_file_name realpath getrusage getuid \
 		getgid pipe poll pread64 sbrk setpgid setpgrp setsid \
 		sigaction sigprocmask sigsetmask socketpair syscall \
 		ttrace wborder setlocale iconvlist libiconvlist btowc \
-		setrlimit getrlimit posix_madvise])
+		setrlimit getrlimit posix_madvise pthread_create])
 AM_LANGINFO_CODESET
 
 # Check the return and argument types of ptrace.  No canned test for
-- 
1.6.2.5