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gdb: fix cygwin check in configure script

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Avoid false positives if the search pattern "lose" is found in path
descriptions in comments generated by the preprocessor.

See <https://sourceware.org/bugzilla/show_bug.cgi?id=16152>.

gdb/
2013-11-27  Steffen Sledz  <sledz@dresearch-fe.de>

	* configure.ac: Tighten Cygwin detection check.
	* configure: Rebuild.
This commit is contained in:
Steffen Sledz
2013-11-27 18:51:49 +00:00
committed by Pedro Alves
parent 908fa2aaed
commit 92a021debf
3 changed files with 7 additions and 2 deletions
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2
gdb/configure.ac
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@@ -1877,7 +1877,7 @@ AC_SUBST(WERROR_CFLAGS)
# In the Cygwin environment, we need some additional flags.
AC_CACHE_CHECK([for cygwin], gdb_cv_os_cygwin,
[AC_EGREP_CPP(lose, [
[AC_EGREP_CPP(^lose$, [
#if defined (__CYGWIN__) || defined (__CYGWIN32__)
lose
#endif],[gdb_cv_os_cygwin=yes],[gdb_cv_os_cygwin=no])])