Red Hat Bugzilla – Bug 964589
/usr/bin/gcc-ar fails: "Cannot find binary 'ar'"
Last modified: 2015-02-17 10:16:08 EST
Description of problem:
The "gcc-ar" program worked fine in F18. In F19 Beta RC2 it always fails with "Cannot find binary 'ar'" "gcc-ar" is necessary for anybody who wants to use the "-lto" feature with gcc.
Version-Release number of selected component (if applicable):
$ yum whatprovides `which gcc-ar`
gcc-4.8.0-2.fc19.x86_64 : Various compilers (C, C++, Objective-C, Java, ...)
Repo : @fedora
Filename : /usr/bin/gcc-ar
Steps to Reproduce:
1. Invoke gcc-ar on any .a file you have. For example: gcc-ar t /usr/lib64/libg.a
2. Observe error message
$ gcc-ar t /usr/lib64/libg.a
gcc-ar: Cannot find binary 'ar'
$ gcc-ar t /usr/lib64/libg.a
Anybody whose project requires gcc's link time optimization is going to be broken by this. It means I cannot use stock F19 as a development platform.
From looking at strace output, gcc-ar is looking in the following two places for ar:
3569 stat("/usr/lib/gcc/x86_64-redhat-linux/4.8.0/../../../../x86_64-redhat-linux/bin/ar", 0x7fffa0b1fa00) = -1 ENOENT (No such file or directory)
3569 stat("/usr/libexec/gcc/x86_64-redhat-linux/4.8.0/ar", 0x7fffa0b1fa00) = -1 ENOENT (No such file or directory)
3569 write(2, "gcc-ar: Cannot find binary 'ar'\n", 32) = 32
3569 exit_group(1) = ?
3569 +++ exited with 1 +++
From going through changelogs, apparently the tools expect ar (and nm and ranlib) to be installed at /usr/libexec/gcc/x86_64-redhat-linux/4.8.0. Or I guess to be hardlinked to those places, since we obviously still want those tools at /usr/bin as well.
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