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build: Fix Gnulib compilation when $builddir != $srcdir.

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* configure.ac: Add -I$top_srcdir_absolute to 'CPPFLAGS'.  Fixes
  out-of-source-tree compilation of lib/regex.c.  Reported at
  <https://lists.gnu.org/archive/html/guile-devel/2014-03/msg00022.html>.
This commit is contained in:
Ludovic Courtès 2014-03-12 14:24:11 +01:00
parent c6a2691fff
commit da7e43a6e0
1 changed files with 3 additions and 0 deletions
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3
configure.ac
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@ -1636,6 +1636,9 @@ AC_SUBST(top_builddir_absolute)
top_srcdir_absolute=`(cd $srcdir && pwd)`
AC_SUBST(top_srcdir_absolute)
dnl Add -I flag so that lib/glthread/lock.h finds <libguile/threads.h>.
CPPFLAGS="-I$top_srcdir_absolute $CPPFLAGS"
dnl `sitedir' goes into libpath.h and the pkg-config file.
pkgdatadir="$datadir/$PACKAGE_TARNAME"
sitedir="$pkgdatadir/site/$GUILE_EFFECTIVE_VERSION"