src/Makefile.am: access curl.txt using a relative path, not abs

... to make it work when mounted using different mount points. Like when
generated/used inside and outside of a docker image.

Closes #13320

diff --git a/src/Makefile.am b/src/Makefile.am
index fcc9cfdf942135e6439ea29ffc8d196a670c2810..3bf57d36cecfd0304dfda3d55d055e372ba661dc 100644 (file)
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -96,7 +96,7 @@ EXTRA_DIST = mkhelp.pl \
  Makefile.mk curl.rc Makefile.inc CMakeLists.txt .checksrc
 
 # Use absolute directory to disable VPATH
-ASCIIPAGE=$(abs_top_builddir)/docs/cmdline-opts/curl.txt
+ASCIIPAGE=$(top_builddir)/docs/cmdline-opts/curl.txt
 MKHELP=$(top_srcdir)/src/mkhelp.pl
 HUGE=tool_hugehelp.c