fontconfig build fails if "head" is missing or unusable (bug 14304)

If the /usr/bin/head program is missing or unusable, or if an unusable head
program is listed first in the PATH, fontconfig fails to build

using "sed -n 1p" instead of "head -1" would be a suitable workaround.

diff --git a/src/makealias b/src/makealias
index 1f57742..fd9c3fd 100755 (executable)
--- a/src/makealias
+++ b/src/makealias
@@ -17,7 +17,7 @@ while read name; do
                hattr='__attribute((visibility("hidden")))'
                echo "extern __typeof ($name) $alias $hattr;" >> $HEAD
                echo "#define $name $alias" >> $HEAD
-               grep -l '^'$name'[ (]' "$SRCDIR"/*.c | head -1 | sed -e 's/^.*\/\([^.]*\)\.c/#ifdef __\1__/' >> $TAIL
+               grep -l '^'$name'[ (]' "$SRCDIR"/*.c | sed -n 1p | sed -e 's/^.*\/\([^.]*\)\.c/#ifdef __\1__/' >> $TAIL
                echo "#undef $name" >> $TAIL
                cattr='__attribute((alias("'$alias'"), visibility("default")))'
                echo "extern __typeof ($name) $name $cattr;" >> $TAIL