[PATCH 1/2] kdrive: Fix tslib check fallback to set TSLIB_LIBS. #30599

[Michał Górny]

If pkg-config is unable to find tslib but the fallback check does find
it, the compilation continues with tslib support enabled though
TSLIB_LIBS are unset. Thus, the compilation fails with a linking error
on tslib functions.

This patch sets TSLIB_LIBS to '-lts' whenever the tslib fallback check
succeeds.

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=30599
Signed-off-by: Michał Górny <mgorny at gentoo.org>
---
 configure.ac |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/configure.ac b/configure.ac
index c0bf98f..6d63663 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2034,7 +2034,10 @@ if test "$KDRIVE" = yes; then
 
     PKG_CHECK_MODULES([TSLIB], [tslib-0.0], [HAVE_TSLIB="yes"], [HAVE_TSLIB="no"])
     if test "x$HAVE_TSLIB" = xno; then
-        AC_CHECK_LIB(ts, ts_open, [HAVE_TSLIB="yes"])
+        AC_CHECK_LIB(ts, ts_open, [
+			HAVE_TSLIB="yes"
+			TSLIB_LIBS="-lts"
+		])
     fi
 
     if test "xTSLIB" = xauto; then
-- 
1.7.3.1