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[Libunwind-devel] [PATCH 4/6] Improve configure check reporting.
From: |
Zachary T Welch |
Subject: |
[Libunwind-devel] [PATCH 4/6] Improve configure check reporting. |
Date: |
Thu, 28 Oct 2010 16:25:49 -0700 |
Adds numerous AC_MSG_CHECKING and AC_MSG_RESULT pairings for
configuration tests that were previously unreported. Relocates
the debug configuration to the same part of the file as the command
line option declaration for associative clarity. Makes it easier
to confirm the resultant configuration matches original intentions.
Signed-off-by: Zachary T Welch <address@hidden>
---
configure.in | 53 ++++++++++++++++++++++++++++++++++++++++++-----------
1 files changed, 42 insertions(+), 11 deletions(-)
diff --git a/configure.in b/configure.in
index d84817d..729827a 100644
--- a/configure.in
+++ b/configure.in
@@ -46,11 +46,6 @@ AC_TYPE_SIGNAL
AC_TYPE_SIZE_T
CPPFLAGS="${CPPFLAGS} -D_GNU_SOURCE"
-if test x$enable_debug = xyes; then
- CPPFLAGS="${CPPFLAGS} -DDEBUG"
-else
- CPPFLAGS="${CPPFLAGS} -DNDEBUG"
-fi
AC_CHECK_MEMBERS([struct dl_phdr_info.dlpi_subs],,,[#include <link.h>])
AC_CHECK_TYPES([sighandler_t], [], [],
@@ -91,8 +86,14 @@ is_gcc_altivec() {
fi;
}
+AC_MSG_CHECKING([if building with AltiVec])
use_altivec=`is_gcc_altivec`
AM_CONDITIONAL(USE_ALTIVEC, test x$use_altivec = xhas_altivec)
+if test x$use_altivec = xhas_altivec; then
+ AC_MSG_RESULT([yes])
+else
+ AC_MSG_RESULT([no])
+fi
get_arch() {
case "$1" in
@@ -110,6 +111,15 @@ build_arch=`get_arch $build_cpu`
host_arch=`get_arch $host_cpu`
target_arch=`get_arch $target_cpu`
+AC_MSG_CHECKING([for build architecture])
+AC_MSG_RESULT([$build_arch])
+AC_MSG_CHECKING([for host architecture])
+AC_MSG_RESULT([$host_arch])
+AC_MSG_CHECKING([for target architecture])
+AC_MSG_RESULT([$target_arch])
+AC_MSG_CHECKING([for target operating system])
+AC_MSG_RESULT([$target_os])
+
AM_CONDITIONAL(REMOTE_ONLY, test x$target_arch != x$host_arch)
AM_CONDITIONAL(ARCH_ARM, test x$target_arch = xarm)
AM_CONDITIONAL(ARCH_IA64, test x$target_arch = xia64)
@@ -129,14 +139,27 @@ if test x$target_arch = xppc64; then
AC_SUBST([libdir])
fi
+AC_MSG_CHECKING([whether to restrict build to remote support])
if test x$target_arch != x$host_arch; then
CPPFLAGS="${CPPFLAGS} -DUNW_REMOTE_ONLY"
+ remote_only=yes
+else
+ remote_only=no
fi
+AC_MSG_RESULT([$remote_only])
+AC_MSG_CHECKING([whether to enable debug support])
AC_ARG_ENABLE(debug,
[ --enable-debug turn on debug support (slows down execution)],
-[enable_debug=yes], [])
+[enable_debug=yes], [enable_debug=no])
+if test x$enable_debug = xyes; then
+ CPPFLAGS="${CPPFLAGS} -DDEBUG"
+else
+ CPPFLAGS="${CPPFLAGS} -DNDEBUG"
+fi
+AC_MSG_RESULT([$enable_debug])
+AC_MSG_CHECKING([whether to enable C++ exception support])
AC_ARG_ENABLE(cxx_exceptions,
[ --enable-cxx-exceptions use libunwind to handle C++ exceptions],
[enable_cxx_exceptions=$enableval],
@@ -150,50 +173,58 @@ case $target_arch in
esac
])
-if test x$enable_cxx_exceptions = xyes; then
- AC_MSG_NOTICE([Enabling C++ exception support])
-fi
AM_CONDITIONAL([SUPPORT_CXX_EXCEPTIONS], [test x$enable_cxx_exceptions = xyes])
+AC_MSG_RESULT([$enable_cxx_exceptions])
+AC_MSG_CHECKING([whether to load .debug_frame sections])
AC_ARG_ENABLE(debug_frame,
[ --enable-debug-frame Load the ".debug_frame" section if available],
[enable_debug_frame=$enableval], [enable_debug_frame=no])
if test x$enable_debug_frame = xyes; then
AC_DEFINE([CONFIG_DEBUG_FRAME], [], [Enable Debug Frame])
fi
+AC_MSG_RESULT([$enable_debug_frame])
+AC_MSG_CHECKING([whether to block signals during mutex ops])
AC_ARG_ENABLE(block_signals,
[ --enable-block-signals Block signals before performing mutex operations],
[enable_block_signals=$enableval], [enable_block_signals=yes])
if test x$enable_block_signals = xyes; then
AC_DEFINE([CONFIG_BLOCK_SIGNALS], [], [Block signals before mutex
operations])
fi
+AC_MSG_RESULT([$enable_block_signals])
+AC_MSG_CHECKING([whether to validate memory addresses before use])
AC_ARG_ENABLE(conservative_checks,
[ --enable-conservative-checks Validate all memory addresses before use],
[enable_conservative_checks=$enableval], [enable_conservative_checks=yes])
if test x$enable_conservative_checks = xyes; then
CPPFLAGS="${CPPFLAGS} -DCONSERVATIVE_CHECKS"
fi
+AC_MSG_RESULT([$enable_conservative_checks])
LIBUNWIND___THREAD
+AC_MSG_CHECKING([if linker supports -static-libcxa])
save_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS -static-libcxa"
-AC_TRY_LINK([], [], [have_static_libcxa=yes])
+AC_TRY_LINK([], [], [have_static_libcxa=yes], [have_static_libcxa=no])
LDFLAGS="$save_LDFLAGS"
if test "x$have_static_libcxa" = xyes; then
LDFLAGS_STATIC_LIBCXA="-XCClinker -static-libcxa"
fi
+AC_MSG_RESULT([$have_static_libcxa])
+AC_MSG_CHECKING([for Intel compiler])
AC_TRY_COMPILE([], [#ifndef __INTEL_COMPILER
#error choke me
-#endif], [intel_compiler=yes])
+#endif], [intel_compiler=yes], [intel_compiler=no])
if test x$GCC = xyes -a x$intel_compiler != xyes; then
CFLAGS="${CFLAGS} -fexceptions -Wall -Wsign-compare"
LIBCRTS="-lgcc"
fi
+AC_MSG_RESULT([$intel_compiler])
CCASFLAGS="${CCASFLAGS} ${CPPFLAGS}"
--
1.7.2.2
- [Libunwind-devel] [PATCH 0/6] misc fixes and improvements, Zachary T Welch, 2010/10/28
- [Libunwind-devel] [PATCH 1/6] Add .gitignore file, Zachary T Welch, 2010/10/28
- [Libunwind-devel] [PATCH 4/6] Improve configure check reporting.,
Zachary T Welch <=
- [Libunwind-devel] [PATCH 2/6] Remove duplicate check for PTRACE_CONT, Zachary T Welch, 2010/10/28
- [Libunwind-devel] [PATCH 5/6] Improve debug-frame conifigure option default, Zachary T Welch, 2010/10/28
- [Libunwind-devel] [PATCH 3/6] Fix memory leak in ARM unw_create_addr_space(), Zachary T Welch, 2010/10/28
- [Libunwind-devel] [PATCH 6/6] Add MAINTAINERCLEANFILES to Makefile.am files., Zachary T Welch, 2010/10/28