useless-if-before-free: improve conversion code

[pspp] / gnulib-tool

diff --git a/gnulib-tool b/gnulib-tool
index 0b059e124b3db10926552e8e3126f7c68c9aeb94..74ea4fc8a9ef7454ad262109a78bfc320b8fd1aa 100755 (executable)
--- a/gnulib-tool
+++ b/gnulib-tool
@@ -1953,7 +1953,14 @@ func_emit_lib_Makefile_am ()
   echo "## Process this file with automake to produce Makefile.in."
   func_emit_copyright_notice
   if test -n "$actioncmd"; then
-    echo "# Reproduce by: $actioncmd"
+    # The maximum line length (excluding the terminating newline) of any file
+    # that is to be preprocessed by config.status is 3070.  config.status uses
+    # awk, and the HP-UX 11.00 awk fails if a line has length >= 3071;
+    # similarly, the IRIX 6.5 awk fails if a line has length >= 3072.
+    len=`echo "$actioncmd" | wc -c`
+    if test -n "$len" && test "$len" -le 3000; then
+      echo "# Reproduce by: $actioncmd"
+    fi
   fi
   echo
   uses_subdirs=
@@ -2047,9 +2054,14 @@ func_emit_lib_Makefile_am ()
     echo "AM_CFLAGS ="
   fi
   echo
-  if LC_ALL=C grep "^[a-zA-Z0-9_]*_${perhapsLT}LIBRARIES *+\{0,1\}= *$libname\\.$libext\$" allsnippets.tmp > /dev/null; then
-    # One of the snippets already specifies an installation location for the
-    # library. Don't confuse automake by saying it should not be installed.
+  if LC_ALL=C grep "^[a-zA-Z0-9_]*_${perhapsLT}LIBRARIES *+\{0,1\}= *$libname\\.$libext\$" allsnippets.tmp > /dev/null \
+     || { test -n "$makefile_name" \
+          && test -f "$sourcebase/Makefile.am" \
+          && LC_ALL=C grep "^[a-zA-Z0-9_]*_${perhapsLT}LIBRARIES *+\{0,1\}= *$libname\\.$libext\$" "$sourcebase/Makefile.am" > /dev/null; \
+        }; then
+    # One of the snippets or the user's Makefile.am already specifies an
+    # installation location for the library. Don't confuse automake by saying
+    # it should not be installed.
     :
   else
     # By default, the generated library should not be installed.