Bug #6119: Usage of CPPFLAGS during configure result in duplicated values for RbConfig CPPFLAGS information

• Status: Closed
• Assignee: nobu (Nobuyoshi Nakada)
• Target version: -

[luislavena (Luis Lavena)]

When attempted to use FD_SETSIZE preprocesor definition under Windows to increase number of file descriptions, found that configure script replicated it.

A simple configure invoke with `sh configure --enable-shared CPPFLAGS='-DFD_SETSIZE=32767' result in the following value returned by RbConfig:

irb(main):001:0> require "rbconfig"
=> false
irb(main):002:0> RbConfig::CONFIG["CPPFLAGS"]
=> "-DFD_SETSIZE=32767  -DFD_SETSIZE=32767"

Above is result from Ruby 1.9.3, and for ruby-trunk:

irb(main):001:0> require "rbconfig"
=> false
irb(main):002:0> RbConfig::CONFIG["CPPFLAGS"]
=> "-DFD_SETSIZE=32767 -D_WIN32_WINNT=0x0501 -DFD_SETSIZE=32767"

I'm not very versed on configure.in, so can't find the culprit of this duplication, sorry about that.

[jonforums (Jon Forums)]

I bet $CPPFLAGS and $cppflags are doing a two step. See if you have something similar to the following (from trunk) in the lib\ruby\1.9.1\i386-mingw32\rbconfig.rb file:

grep "S["CPPFLAGS" config.status
S["CPPFLAGS"]="-DFD_SETSIZE=32767 -D_WIN32_WINNT=0x0501 $(DEFS) ${cppflags}"

grep "S["cppflags" config.status
S["cppflags"]="-DFD_SETSIZE=32767"

Couldn't find a RUBY_APPEND_OPTION(CPPFLAGS, ...) that appeared to cause the issue, but there may be something else in configure.in like https://github.com/ruby/ruby/blob/trunk/configure.in#L2731

[shyouhei (Shyouhei Urabe)]

• Status changed from Open to Assigned

[nobu (Nobuyoshi Nakada)]

• Tracker changed from Bug to Backport
• Project changed from Ruby to 13
• Category deleted (build)
• Target version deleted (1.9.3)

I don't see this issue with trunk.

[nobu (Nobuyoshi Nakada)]

• Tracker changed from Backport to Bug
• Project changed from 13 to Ruby

Sorry, reproduced.

[nobu (Nobuyoshi Nakada)]

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

This issue was solved with changeset r36550.
Luis, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

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configure.in: get rid of duplication in CPPFLAGS

• configure.in (RUBY_CPPOUTFILE): get rid of variable conflict so
  CPPFLAGS is not duplicated. [ruby-core:43097] [Bug #6119]