http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54163
Bug #: 54163
Summary: Ignore -l[lib] option on PCH generation
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: enhancement
Priority: P3
Component: pch
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: pavel.v.chu...@gmail.com
This case doesn't work:
$ g++ t.H -o t.H.gch -lfoo -L.
/usr/lib/gcc/x86_64-redhat-linux/4.7.0/../../../../lib64/crt1.o: In function
`_start':
(.text+0x20): undefined reference to `main'
collect2: error: ld returned 1 exit status
Adding -c solve the issue:
$ g++ t.H -o t.H.gch -lfoo -L. -c
Nevertheless without -l switch gcc generates precompiled header even without -c
and doesn't complain on main. All these cases works fine:
$ g++ t.H -o t.H.gch -c
$ g++ t.H -o t.H.gch
$ g++ t.H
Does it make sense to allow PCH generation with -l?
