From: Akim Demaille <akim@epita.fr>
Date: Mon, 16 Oct 2000 19:21:04 +0000 (+0000)
Subject: * depcomp: Fix a bug in SGI dependency tracking mode with source
X-Git-Tag: Release-1-4b~40
X-Git-Url: https://sourceware.org/git/?a=commitdiff_plain;h=dc37994fa7c6753007d3e9d7a67b42e080cb41a1;p=automake.git

* depcomp: Fix a bug in SGI dependency tracking mode with source
files which do not contain any dependencies to other source files.
---

diff --git a/ChangeLog b/ChangeLog
index 233b76cf..91f163c2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2000-10-16   Morten Eriksen  <mortene@sim.no>
+
+	* depcomp: Fix a bug in SGI dependency tracking mode with source
+	files which do not contain any dependencies to other source files.
+
 2000-10-16  Rodney Brown  <RodneyBrown@mynd.com>
 
 	* aclocal.in, aclocal.m4: Standardize FSF Copyright statements.
diff --git a/depcomp b/depcomp
index e482a0da..b1a74e19 100755
--- a/depcomp
+++ b/depcomp
@@ -125,20 +125,29 @@ sgi)
     exit $stat
   fi
   rm -f "$depfile" 
-  echo "$object : \\" > "$depfile"
 
-  # Clip off the initial element (the dependent). Don't try to be
-  # clever and remove the tr invocations, as IRIX sed won't handle
-  # lines with more than 8192 characters.
-  tr ' ' '
+  if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
+    echo "$object : \\" > "$depfile"
+
+    # Clip off the initial element (the dependent). Don't try to be
+    # clever and replace this with sed code, as IRIX sed won't handle
+    # lines with more than a fixed number of characters (4096 in
+    # IRIX 6.2 sed, 8192 in IRIX 6.5).
+    tr ' ' '
 ' < "$tmpdepfile" | sed 's/^[^\.]*\.o://' | tr '
 ' ' ' >> $depfile
 
-  tr ' ' '
+    tr ' ' '
 ' < "$tmpdepfile" | \
 ## Some versions of the HPUX 10.20 sed can't process this invocation
 ## correctly.  Breaking it into two sed invocations is a workaround.
-    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+      sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+  else
+    # The sourcefile does not contain any dependencies, so just
+    # store a dummy comment line, to avoid errors with the Makefile
+    # "include basename.Plo" scheme.
+    echo "#dummy" > "$depfile"
+  fi
   rm -f "$tmpdepfile"
   ;;
 
diff --git a/lib/depcomp b/lib/depcomp
index e482a0da..b1a74e19 100755
--- a/lib/depcomp
+++ b/lib/depcomp
@@ -125,20 +125,29 @@ sgi)
     exit $stat
   fi
   rm -f "$depfile" 
-  echo "$object : \\" > "$depfile"
 
-  # Clip off the initial element (the dependent). Don't try to be
-  # clever and remove the tr invocations, as IRIX sed won't handle
-  # lines with more than 8192 characters.
-  tr ' ' '
+  if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
+    echo "$object : \\" > "$depfile"
+
+    # Clip off the initial element (the dependent). Don't try to be
+    # clever and replace this with sed code, as IRIX sed won't handle
+    # lines with more than a fixed number of characters (4096 in
+    # IRIX 6.2 sed, 8192 in IRIX 6.5).
+    tr ' ' '
 ' < "$tmpdepfile" | sed 's/^[^\.]*\.o://' | tr '
 ' ' ' >> $depfile
 
-  tr ' ' '
+    tr ' ' '
 ' < "$tmpdepfile" | \
 ## Some versions of the HPUX 10.20 sed can't process this invocation
 ## correctly.  Breaking it into two sed invocations is a workaround.
-    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+      sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+  else
+    # The sourcefile does not contain any dependencies, so just
+    # store a dummy comment line, to avoid errors with the Makefile
+    # "include basename.Plo" scheme.
+    echo "#dummy" > "$depfile"
+  fi
   rm -f "$tmpdepfile"
   ;;