[Libguestfs] [PATCH v2 1/3] configure: handle older version of ncurses

[Cédric Bosdonnat]

ncurses didn't have pkg-config files in not-that-old versions. If those
couldn't be found, then try the ncurses6-config tool.
---
 m4/guestfs_libraries.m4 | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/m4/guestfs_libraries.m4 b/m4/guestfs_libraries.m4
index c5a4a01..defd394 100644
--- a/m4/guestfs_libraries.m4
+++ b/m4/guestfs_libraries.m4
@@ -113,7 +113,17 @@ struct sockaddr_un myaddr;
 dnl tgetent, tputs and UP [sic] are all required.  They come from the lower
 dnl tinfo library, but might be part of ncurses directly.
 PKG_CHECK_MODULES([LIBTINFO], [tinfo], [], [
-    PKG_CHECK_MODULES([LIBTINFO], [ncurses])
+    PKG_CHECK_MODULES([LIBTINFO], [ncurses], [], [
+        AC_CHECK_PROG([NCURSES_CONFIG], [ncurses6-config], [ncurses6-config], [no])
+        if test "x$NCURSES_CONFIG" == "xno"; then
+            AC_CHECK_PROG([NCURSES_CONFIG], [ncurses5-config], [ncurses5-config], [no])
+        fi
+        if test "x$NCURSES_CONFIG" == "xno"; then
+            AC_MSG_ERROR([ncurses development package is not installed])
+        fi
+        LIBTINFO_CFLAGS=`$NCURSES_CONFIG --cflags`
+        LIBTINFO_LIBS=`$NCURSES_CONFIG --libs`
+    ])
 ])
 AC_SUBST([LIBTINFO_CFLAGS])
 AC_SUBST([LIBTINFO_LIBS])
-- 
2.6.2