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* [gcc r12-8191] libstdc++: Fix syntax error in libbacktrace configuration
@ 2022-04-19 10:59 Jonathan Wakely
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From: Jonathan Wakely @ 2022-04-19 10:59 UTC (permalink / raw)
To: gcc-cvs, libstdc++-cvs
https://gcc.gnu.org/g:a2a7da1a055c98d9b4578151f273e0e7572aa605
commit r12-8191-ga2a7da1a055c98d9b4578151f273e0e7572aa605
Author: Jonathan Wakely <jwakely@redhat.com>
Date: Tue Apr 19 09:55:30 2022 +0100
libstdc++: Fix syntax error in libbacktrace configuration
Using == instead of = causes a configuration error with dash as the
shell:
checking whether to build libbacktrace support... /home/devel/building/work/src/gcc-12-20220417/libstdc++-v3/configure: 77471: test: auto: unexpected operator
/home/devel/building/work/src/gcc-12-20220417/libstdc++-v3/configure: 77474: test: auto: unexpected operator
auto
This means we fail to change the value from "auto" to "no" and so this
test passes:
GLIBCXX_CONDITIONAL(ENABLE_BACKTRACE, [test "$enable_libstdcxx_backtrace" != no])
This leads to the libbacktrace directory being included in the build
without being configured properly, and bootstrap fails.
libstdc++-v3/ChangeLog:
* acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Fix shell operators.
* configure: Regenerate.
Diff:
---
libstdc++-v3/acinclude.m4 | 6 +++---
libstdc++-v3/configure | 6 +++---
2 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/libstdc++-v3/acinclude.m4 b/libstdc++-v3/acinclude.m4
index 6aece2adff8..138bd58d86c 100644
--- a/libstdc++-v3/acinclude.m4
+++ b/libstdc++-v3/acinclude.m4
@@ -5007,10 +5007,10 @@ esac
BACKTRACE_CPPFLAGS="$BACKTRACE_CPPFLAGS -DBACKTRACE_ELF_SIZE=$elfsize"
AC_MSG_CHECKING([whether to build libbacktrace support])
- if test "$enable_libstdcxx_backtrace" == "auto"; then
+ if test "$enable_libstdcxx_backtrace" = "auto"; then
enable_libstdcxx_backtrace=no
fi
- if test "$enable_libstdcxx_backtrace" == "yes"; then
+ if test "$enable_libstdcxx_backtrace" = "yes"; then
BACKTRACE_SUPPORTED=1
AC_CHECK_HEADERS(sys/mman.h)
@@ -5057,7 +5057,7 @@ BACKTRACE_CPPFLAGS="$BACKTRACE_CPPFLAGS -DBACKTRACE_ELF_SIZE=$elfsize"
BACKTRACE_SUPPORTS_THREADS=0
fi
AC_MSG_RESULT($enable_libstdcxx_backtrace)
- GLIBCXX_CONDITIONAL(ENABLE_BACKTRACE, [test "$enable_libstdcxx_backtrace" != no])
+ GLIBCXX_CONDITIONAL(ENABLE_BACKTRACE, [test "$enable_libstdcxx_backtrace" = yes])
])
# Macros from the top-level gcc directory.
diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
index 7a0ac405331..9b94fd71e42 100755
--- a/libstdc++-v3/configure
+++ b/libstdc++-v3/configure
@@ -77468,10 +77468,10 @@ BACKTRACE_CPPFLAGS="$BACKTRACE_CPPFLAGS -DBACKTRACE_ELF_SIZE=$elfsize"
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build libbacktrace support" >&5
$as_echo_n "checking whether to build libbacktrace support... " >&6; }
- if test "$enable_libstdcxx_backtrace" == "auto"; then
+ if test "$enable_libstdcxx_backtrace" = "auto"; then
enable_libstdcxx_backtrace=no
fi
- if test "$enable_libstdcxx_backtrace" == "yes"; then
+ if test "$enable_libstdcxx_backtrace" = "yes"; then
BACKTRACE_SUPPORTED=1
for ac_header in sys/mman.h
@@ -78563,7 +78563,7 @@ else
fi
- if test "$enable_libstdcxx_backtrace" != no; then
+ if test "$enable_libstdcxx_backtrace" = yes; then
ENABLE_BACKTRACE_TRUE=
ENABLE_BACKTRACE_FALSE='#'
else
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