[PATCH 1/2] Filter newlines from BUILD_REQUIRES

[Corinna Vinschen <corinna-cygwin@cygwin.com>]

From: Corinna Vinschen <corinna@vinschen.de>

BUILD_REQUIRES is added verbatim to the build-depends: line in
the *-src.hint file.  If the cygport file defines BUILD_REQUIRES
with spaces, e. g.

  BUILD_REQUIRES="
    a
    b
  "

The -src.hint file is broken.  Avoid this by filtering out any
newline's from BUILD_REQUIRES before using it in the subsequent
expression building the -src.hint file.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
---
 lib/pkg_pkg.cygpart | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/pkg_pkg.cygpart b/lib/pkg_pkg.cygpart
index 82112e1cfc79..eb06a08dd562 100644
--- a/lib/pkg_pkg.cygpart
+++ b/lib/pkg_pkg.cygpart
@@ -544,6 +544,10 @@ __pkg_srcpkg() {
 		elif [ -n "${!pkg_category_var:-${CATEGORY}}" \
 			-a -n "${!pkg_summary_var:-${SUMMARY}}${!pkg_description_var:-${DESCRIPTION}}" ]
 		then
+			# BUILD_REQUIRES is added to the build-depends: line
+			# in the hint file written below.  Convert LFs to
+			# spaces to make sure it's actually a single line.
+			BUILD_REQUIRES=$(echo -n "$BUILD_REQUIRES" | tr '\n' ' ')
 			cat > ${distdir}/${PN}/${PN}-${PVR}-src.hint <<-_EOF
 category: ${!pkg_category_var:-${CATEGORY}}
 build-depends: cygport ${BUILD_REQUIRES}
-- 
2.38.1