Bug 705196

Summary: gcc produce a broken .dep file which cause make cannot compute dependency correctly
Product: [Fedora] Fedora Reporter: Howard Su <howard0su>
Component: gccAssignee: Jakub Jelinek <jakub>
Status: CLOSED WORKSFORME QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: unspecified    
Version: 14CC: jakub
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Hardware: Unspecified   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2011-05-17 09:11:37 UTC Type: ---
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Description Howard Su 2011-05-16 22:39:49 UTC 
Description of problem:
the dependency file gcc produced a broken file

Version-Release number of selected component (if applicable):
gcc (GCC) 4.5.1 20100924 (Red Hat 4.5.1-4)

How reproducible:
consistantly

Steps to Reproduce:
1.create a simple a.c like following
      int a() {}
2. run the following command to compile
   gcc -c -Wp,-MD,a.o.dep -Wp,-MT,a.o -Wp,-MP -o a.o a.c
  
Actual results:
$cat a.o.dep
a.o a.o: a.c

Expected results:
$cat a.o.dep
a.o: a.c


Additional info:
Comment 1 Howard Su 2011-05-17 03:26:51 UTC 
Linux amd64 version only
Comment 2 Jakub Jelinek 2011-05-17 09:11:37 UTC 
gcc -v 2>&1 | egrep 'Target|gcc version'; gcc -c -Wp,-MD,a.o.dep -Wp,-MT,a.o -Wp,-MP -o a.o a.c; cat a.o.dep
Target: x86_64-redhat-linux
gcc version 4.5.1 20100924 (Red Hat 4.5.1-4) (GCC) 
a.o: a.c

Can't reproduce.