Thread: x64 compilation problem

Started: 2008-02-15 02:36:22
Last activity: 2008-02-15 18:49:22
Topics: SAC Help
ying
2008-02-15 02:36:22
i have the SAC-101.1 source code and i wanted to compile it on my 64bit
redhat linux machine and wanted to create
64-bit static .a library.
even i used :
./configure --prefix=mypath CFLAGS=-m64 LDFLAGS=-m64
how come it's still 32-bit library?

here is an output of the 'configure'
...........................................
CFLAGS = -m32 -m32
LDFLAGS = -m32 -m64
LIBS = -ldl -lm -lncurses
Debug =
Optimization =
Database = off
X11-buffer = on
X11-depth = on
X_LIBS = -L/usr/lib64
X_CFLAGS = -I/usr/include
Readline = off
Editline = on
Install Base = /auto/home/yzheng/sftw/sac_source-101.1/sac-101.1
System = linux_x86_64 (x86_64-unknown-linux-gnu)


thanks. yingcai

  • Brian Savage
    2008-02-15 18:49:22
    Yingcal,

    SAC will not compile or run properly in 64 bit mode. You need to
    compile it
    in 32 bit mode. This is why the configure script insists on putting
    the -m32 flag
    as a compile time option.

    Running SAC on a 64 bit system as a 32 bit binary is not harmful and
    does
    not show reduced performance.

    Cheers,
    Brian

    On Feb 14, 2008, at 9:36 PM, Yingcai Zheng wrote:

    i have the SAC-101.1 source code and i wanted to compile it on my
    64bit redhat linux machine and wanted to create
    64-bit static .a library.
    even i used :
    ./configure --prefix=mypath CFLAGS=-m64 LDFLAGS=-m64
    how come it's still 32-bit library?

    here is an output of the
    'configure' ...........................................
    CFLAGS = -m32 -m32
    LDFLAGS = -m32 -m64
    LIBS = -ldl -lm -lncurses
    Debug =
    Optimization =
    Database = off
    X11-buffer = on
    X11-depth = on
    X_LIBS = -L/usr/lib64
    X_CFLAGS = -I/usr/include
    Readline = off
    Editline = on
    Install Base = /auto/home/yzheng/sftw/sac_source-101.1/sac-101.1
    System = linux_x86_64 (x86_64-unknown-linux-gnu)


    thanks. yingcai
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06:35:43 v.ad6b513c