Move macros for finding floating-point exponents into separate M4 files.

[gnulib.git] / gnulib-tool

diff --git a/gnulib-tool b/gnulib-tool
index 7b660b9..7dd2063 100755 (executable)
--- a/gnulib-tool
+++ b/gnulib-tool
@@ -1737,7 +1737,7 @@ func_emit_lib_Makefile_am ()
     echo "AM_CPPFLAGS ="
   fi
   echo
-  if LC_ALL=C grep "^[a-zA-Z0-9_]*_${perhapsLT}LIBRARIES *= *$libname\\.$libext\$" allsnippets.tmp > /dev/null; then
+  if LC_ALL=C grep "^[a-zA-Z0-9_]*_${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.
     :
@@ -2068,10 +2068,10 @@ func_emit_initmacro_end ()
   # the configure.ac resides; if it is run from a different directory, the
   # check is skipped.
   echo "  m4_ifval(${macro_prefix_arg}_LIBSOURCES_LIST, ["
-  echo "    m4_syscmd([test ! -d ]${macro_prefix_arg}_LIBSOURCES_DIR[ ||"
+  echo "    m4_syscmd([test ! -d ]m4_defn([${macro_prefix_arg}_LIBSOURCES_DIR])[ ||"
   echo "      for gl_file in ]${macro_prefix_arg}_LIBSOURCES_LIST[ ; do"
-  echo "        if test ! -r ]${macro_prefix_arg}_LIBSOURCES_DIR[/\$gl_file ; then"
-  echo "          echo \"missing file ]${macro_prefix_arg}_LIBSOURCES_DIR[/\$gl_file\" >&2"
+  echo "        if test ! -r ]m4_defn([${macro_prefix_arg}_LIBSOURCES_DIR])[/\$gl_file ; then"
+  echo "          echo \"missing file ]m4_defn([${macro_prefix_arg}_LIBSOURCES_DIR])[/\$gl_file\" >&2"
   echo "          exit 1"
   echo "        fi"
   echo "      done])dnl"
@@ -3248,6 +3248,8 @@ func_import ()
     # Update the .cvsignore and .gitignore files.
     { echo "$added_files" | sed -e '/^$/d' -e 's,\([^/]*\)$,|A|\1,'
       echo "$removed_files" | sed -e '/^$/d' -e 's,\([^/]*\)$,|R|\1,'
+      # Treat gnulib-comp.m4 like an added file, even if it already existed.
+      echo "$m4base/|A|gnulib-comp.m4"
     } | LC_ALL=C sort -t'|' -k1,1 > "$tmp"/fileset-changes
     { # Rearrange file descriptors. Needed because "while ... done < ..."
       # constructs are executed in a subshell e.g. by Solaris 10 /bin/sh.
@@ -3409,6 +3411,18 @@ func_import ()
     fi
   fi
   echo "  - mention \"-I ${m4base}\" in ACLOCAL_AMFLAGS in Makefile.am,"
+  {
+    # Find the first parent directory of $m4base that contains a Makefile.am.
+    sed_last='s,^.*/\([^/][^/]*\)//*$,\1/,
+s,//*$,/,'
+    sed_butlast='s,[^/][^/]*//*$,,'
+    dir1="${m4base}/"; dir2=""
+    while test -n "$dir1" && test ! -f "${destdir}/${dir1}Makefile.am"; do
+      dir2=`echo "$dir1" | sed -e "$sed_last"`"$dir2"
+      dir1=`echo "$dir1" | sed -e "$sed_butlast"`
+    done
+    echo "  - mention ${dir2}gnulib-cache.m4 in EXTRA_DIST in ${dir1}Makefile.am."
+  }
   echo "  - invoke ${macro_prefix}_EARLY in $configure_ac, right after AC_PROG_CC,"
   echo "  - invoke ${macro_prefix}_INIT in $configure_ac."
 }