[ruby-core:47998] [Backport93 - Backport #7163][Open] Chomp problem in pkg_config of mkmf.rb (ruby 1.9.3 P286)

Issue #7163 has been reported by [e-mail] (ray linn).

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Backport #7163: Chomp problem in pkg_config of mkmf.rb (ruby 1.9.3 P286)
https://bugs.ruby-lang.org/issues/7163

Author: [e-mail] (ray linn)
Status: Open
Priority: Normal
Assignee: 
Category: 
Target version: 


when compiled the ext packages under mingw64 + MSYS, mkmf reports error like this:

"gcc -o conftest -Ic:/ruby64/include/ruby-1.9.1/x64-mingw32 -Ic:/ruby64/include/ruby-1.9.1/ruby/backward -Ic:/ruby64/include/ruby-1.9.1 -I. -I./..  -D_FILE_OFFSET_BITS=64  -O2 -finline-functions -I/usr/local/include -D__USE_MINGW_ANSI_STDIO -IC:/msys/1.0/local/include  
 conftest.c  -L. -Lc:/ruby64/lib -L. -L/usr/local/lib -LC:/msys/1.0/local/lib     -lssl -lcrypto  
 -lx64-msvcrt-ruby191  -lshell32 -lws2_32 -limagehlp  "
gcc: fatal error: no input files
compilation terminated.

the root cause is several enter characters are added in this compile command, these enters are from the pkg_config in mkmf.rb, add chomp in the following line in pkg_config function, issue is fixed.

    cflags = get['cflags']
    ldflags = get['libs']
    libs = get['libs-only-l']

as
    cflags = get['cflags'].chomp
    ldflags = get['libs'].chomp
    libs = get['libs-only-l'].chomp

the attached is mkmf.log before/after the change.


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