Question

我需要在freebsd上构建一个32位的libcurl.so。

如果我这样运行./configure：

CFLAGS="-m32" CPPFLAGS="-m32" LDFLAGS="-L/usr/lib32 -m32" ./configure --prefix=/usr/home/debby/libcurl2

在config.log中出现以下错误：

configure:4373: checking whether the C compiler works
configure:4395: gcc -m32 -m32 -L/usr/lib32 -m32 conftest.c  >&5
/usr/local/bin/ld: i386:x86-64 architecture of input file `/usr/lib/crt1.o' is incompatible with i386 output
/usr/local/bin/ld: i386:x86-64 architecture of input file `/usr/lib/crti.o' is incompatible with i386 output
/usr/local/bin/ld: i386:x86-64 architecture of input file `/usr/local/lib/gcc6/gcc/x86_64-portbld-freebsd11.1/6.4.0/crtbegin.o' is incompatible with i386 output
/usr/local/bin/ld: i386:x86-64 architecture of input file `/usr/local/lib/gcc6/gcc/x86_64-portbld-freebsd11.1/6.4.0/crtend.o' is incompatible with i386 output
/usr/local/bin/ld: i386:x86-64 architecture of input file `/usr/lib/crtn.o' is incompatible with i386 output

我什至以正确的方式来对待吗？我应该在./configure命令行上指定--build和--host，如果是的话，应使用什么值？

=========

更新

使用@Wodin建议的第一个链接，我进行如下配置：

export CFLAGS="-m32 -march=i686 -mmmx -msse -msse2 -mfancy-math-387 -DCOMPAT_32BIT"
#export CPPFLAGS="-m32 -march=i686 -mmx -msse -msse2 -DCOMPAT_32BIT"
export LDFLAGS="-m32 -L/usr/lib32 -B/usr/lib32"
./configure --prefix=/usr/home/debby/libcurl

然后make失败，因为我没有32位运行时库

[debby@GServerBuild ~/curl-7.60.0]$ make install
Making install in lib
  CCLD     libcurl.la
/usr/local/bin/ld: i386:x86-64 architecture of input file `/usr/lib/crti.o' is incompatible with i386 output
/usr/local/bin/ld: i386:x86-64 architecture of input file `/usr/local/lib/gcc6/gcc/x86_64-portbld-freebsd11.1/6.4.0/crtbeginS.o' is incompatible with i386 output
/usr/local/bin/ld: i386:x86-64 architecture of input file `/usr/local/lib/gcc6/gcc/x86_64-portbld-freebsd11.1/6.4.0/crtendS.o' is incompatible with i386 output
/usr/local/bin/ld: i386:x86-64 architecture of input file `/usr/lib/crtn.o' is incompatible with i386 output
collect2: error: ld returned 1 exit status
*** Error code 1

根据提供的第二个链接，看来我需要从/ usr / src构建那些空的库。

我正在尝试使用fetch -o /tmp ftp://ftp.freebsd.org/pub/ uname -s /releases/ uname -m / uname -r |如此处所述，剪切-d'-'-f1,2 /src.txz：https://unix.stackexchange.com/questions/204956/how-do-you-install-the-freebsd10-kernel-sources 并将在这里更新其余部分的运行方式

Answer 1

您正在使用/ usr / local / bin / ld，它是来自端口的binutils。可能没有32位支持。尝试设置LD。

    LD=/usr/bin/ld CFLAGS="-m32" CPPFLAGS="-m32" LDFLAGS="-L/usr/lib32" ./configure --libdir=/usr/local/lib32

我还用readelf检查了文件。

    readelf -h lib/.libs/libcurl.so

ELF标头：

魔术：7f 45 4c 46 01 01 01 09 00 00 00 00 00 00 00 00 00

类别：ELF32

数据：2的补码，小尾数

版本：1（当前）

OS / ABI：FreeBSD

最好的方法是在端口中复制Makefile并进行设置。

PKGNAMEPREFIX="lib32-"
CFLAGS+="-m32"
CPPFLAGs+="-m32"
LDFLAGS+="-L/usr/lib32"
CONFIGURE_ARGS+="--libdir="${LOCALBASE}/lib32"

在freebsd上构建32位libcurl的正确方法是什么？

1 个答案: