Bug #7163

Chomp problem in pkg_config of mkmf.rb (ruby 1.9.3 P286)

Added by (ray linn) about 8 years ago. Updated almost 8 years ago.

Target version:
ruby -v:


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']

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

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


mkmf.bad.log (760 Bytes) mkmf.bad.log before the mkmf.rb change (ray linn), 10/15/2012 03:01 PM
mkmf.good.log (2.04 KB) mkmf.good.log after the mkmf.rb change (ray linn), 10/15/2012 03:01 PM

Updated by usa (Usaku NAKAMURA) about 8 years ago

  • Tracker changed from Backport to Bug
  • Project changed from Backport193 to Ruby master
  • Status changed from Open to Assigned
  • Assignee set to nobu (Nobuyoshi Nakada)

Updated by nobu (Nobuyoshi Nakada) almost 8 years ago

  • Status changed from Assigned to Closed
  • % Done changed from 0 to 100

This issue was solved with changeset r37820.
ray, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

mkmf.rb: mingw64+MSYS pkg-config fix

  • lib/mkmf.rb (MakeMakefile#pkg_config): strip all white spaces for mingw64+MSYS pkg-config which errouneously emits extra newlines. [ruby-core:47998] [Bug #7163]

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