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Re: cygwin -mno-cygwin AC_CHECK_SIZEOF
From: |
Eric Blake |
Subject: |
Re: cygwin -mno-cygwin AC_CHECK_SIZEOF |
Date: |
Fri, 01 Dec 2006 07:06:06 -0700 |
User-agent: |
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.8) Gecko/20061025 Thunderbird/1.5.0.8 Mnenhy/0.7.4.666 |
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According to Bob Rossi on 12/1/2006 6:57 AM:
> CPPFLAGS="-mno-cygwin" CFLAGS="-mno-cygwin -O0"
> ./configure --build=mingw32 --enable-experimental-libtool
EVIL. --build is for the platform you are BUILDING on (ie. cygwin), NOT
the platform you are compiling for (ie. using -mno-cygwin says you are
cross-compiling for mingw). By lying to configure, you are asking for
problems. *Don't do that.* Also, setting environment variables prior to
./configure is deprecated, because rerunning ./config.status won't
remember that you set those variables. And since -mno-cygwin is changing
from a regular to a cross-compiler, you really should be setting it in CC
rather than CFLAGS, so that the change happens everywhere.
So, if you INSIST on using the cygwin environment to cross-compile mingw
binaries, you should use:
./configure --build=i686-pc-cygwin --host=i686-pc-mingw32 \
CC='gcc -mno-cygwin' CXX='g++ -mno-cygwin'
- --
Life is short - so eat dessert first!
Eric Blake address@hidden
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