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-rw-r--r--config/open-axiom.m45
1 files changed, 4 insertions, 1 deletions
diff --git a/config/open-axiom.m4 b/config/open-axiom.m4
index ac4610b8..4c4a7221 100644
--- a/config/open-axiom.m4
+++ b/config/open-axiom.m4
@@ -1035,7 +1035,8 @@ AC_PATH_XTRA
## inspired by AC_PATH_XTRA. I don't have time to get to that
## complication right now. Will fix later.
## But we can check for the existence of <X11/xpm.h>
-X_PRE_LIBS="-lXpm $X_PRE_LIBS"
+## Also check for Xt headers
+X_PRE_LIBS="-lXpm -Xt $X_PRE_LIBS"
AC_SUBST(X_PRE_LIBS)
## If the system supports X11, then build graphics
@@ -1051,6 +1052,8 @@ else
LDFLAGS="$X_PRE_LIBS $X_LIBS $X_EXTRA_LIBS"
AC_CHECK_HEADERS([X11/xpm.h],[],
[AC_MSG_ERROR([The header <X11/xpm.h> could not be found. Install Xpm development package and re-start the configuration process.])])
+ AC_CHECK_HEADERS([X11/Intrinsic.h],[],
+ [AC_MSG_ERROR([The header <X11/Intrinsic.h> could not be found. Install Xt development package and re-start the configuration process.])])
oa_use_x=yes
oa_c_runtime="$oa_c_runtime graphics"
LDFLAGS=$oa_saved_ldflags