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configure: use AC_ARG_ENABLE(arg, text, , custom-act)

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Instead of explicitly specifying "[enable_$arg=$enablearg]", use an
empty parameter to get autoconf's default (which is identical).
This commit is contained in:
Cody P Schafer 2012-09-14 17:11:55 -07:00 committed by Arun Sharma
parent 00087cffae
commit 43118f3f0a
1 changed files with 8 additions and 12 deletions
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20
configure.in
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@ -102,8 +102,7 @@ SET_ARCH([$host_cpu],[host_arch])
SET_ARCH([$target_cpu],[target_arch])
AC_ARG_ENABLE(coredump,
AS_HELP_STRING([--enable-coredump],[building libunwind-coredump library]),
[enable_coredump=$enableval],
AS_HELP_STRING([--enable-coredump],[building libunwind-coredump library]),,
[AS_CASE([$host_arch], [x86*], [enable_coredump=yes], [enable_coredump=no])]
)
@ -180,8 +179,7 @@ AC_MSG_RESULT([$enable_debug])
AC_MSG_CHECKING([whether to enable C++ exception support])
AC_ARG_ENABLE(cxx_exceptions,
AS_HELP_STRING([--enable-cxx-exceptions],[use libunwind to handle C++ exceptions]),
[enable_cxx_exceptions=$enableval],
AS_HELP_STRING([--enable-cxx-exceptions],[use libunwind to handle C++ exceptions]),,
[
# C++ exception handling doesn't work too well on x86
case $target_arch in
@ -197,8 +195,7 @@ AC_MSG_RESULT([$enable_cxx_exceptions])
AC_MSG_CHECKING([whether to load .debug_frame sections])
AC_ARG_ENABLE(debug_frame,
AS_HELP_STRING([--enable-debug-frame],[Load the ".debug_frame" section if available]),
[enable_debug_frame=$enableval], [
AS_HELP_STRING([--enable-debug-frame],[Load the ".debug_frame" section if available]),, [
case "${target_arch}" in
(arm) enable_debug_frame=yes;;
(*) enable_debug_frame=no;;
@ -210,8 +207,8 @@ AC_MSG_RESULT([$enable_debug_frame])
AC_MSG_CHECKING([whether to block signals during mutex ops])
AC_ARG_ENABLE(block_signals,
AS_HELP_STRING([--enable-block-signals],[Block signals before performing mutex operations]),
[enable_block_signals=$enableval], [enable_block_signals=yes])
AS_HELP_STRING([--enable-block-signals],[Block signals before performing mutex operations]),,
[enable_block_signals=yes])
if test x$enable_block_signals = xyes; then
AC_DEFINE([CONFIG_BLOCK_SIGNALS], [], [Block signals before mutex operations])
fi
@ -219,8 +216,8 @@ AC_MSG_RESULT([$enable_block_signals])
AC_MSG_CHECKING([whether to validate memory addresses before use])
AC_ARG_ENABLE(conservative_checks,
AS_HELP_STRING([--enable-conservative-checks],[Validate all memory addresses before use]),
[enable_conservative_checks=$enableval], [enable_conservative_checks=yes])
AS_HELP_STRING([--enable-conservative-checks],[Validate all memory addresses before use]),,
[enable_conservative_checks=yes])
if test x$enable_conservative_checks = xyes; then
AC_DEFINE(CONSERVATIVE_CHECKS, 1,
[Define to 1 if you want every memory access validated])
@ -237,8 +234,7 @@ AC_MSG_RESULT([$enable_msabi_support])
AC_MSG_CHECKING([whether to support LZMA-compressed symbol tables])
AC_ARG_ENABLE(minidebuginfo,
AS_HELP_STRING([--enable-minidebuginfo], [Enables support for LZMA-compressed symbol tables]),
[enable_minidebuginfo=$enableval], [enable_minidebuginfo=auto])
AS_HELP_STRING([--enable-minidebuginfo], [Enables support for LZMA-compressed symbol tables]),, [enable_minidebuginfo=auto])
AC_MSG_RESULT([$enable_minidebuginfo])
if test x$enable_minidebuginfo != xno; then
AC_CHECK_LIB([lzma], [lzma_mf_is_supported],