WAF-ntldd-无法链接静态系统库

Question

Those familiar with Unix will know the ldd program. It lists shared library dependencies of a given executable. There is a Windows clone called ntldd .

ntldd has a very simple build script:

gcc -fno-common -g -O3 -Wall -D_WIN32_WINNT=0x501 -c libntldd.c -o libntldd.o
ar rs libntldd.a libntldd.o
gcc -fno-common -g -O3 -Wall -L. ntldd.c -lntldd -limagehlp -o ntldd.exe

The build script works.

What an ideal little program to test WAF with, I thought.

This is the wscript I thought would work:

#! /usr/bin/env python

from waflib import Logs

APPNAME = "ntldd"

top = "."
out = "build"

def options(ctx):
    ctx.load("compiler_c")

def configure(ctx):
    ctx.load("compiler_c")
    ctx.env.append_value("DEFINES", "_WIN32_WINNT=0x501")

    if ctx.env.CC_NAME == "gcc":
        ctx.env.CFLAGS = ["-g", "-fno-common", "-O3"]
    ctx.check_cc(stlib = "imagehlp", linkflags = "-static")

def build(ctx):
    ctx.logger = Logs.make_logger("build/build.log", "build")
    ctx.env.BINDIR = "binaries"
    ctx.env.LIBDIR = ctx.env.BINDIR

    # a C library
    ctx\
    (
        features = ["c", "cstlib"],
        source   = "libntldd.c",
        target   = "_ntldd",
    )

    # a C application
    ctx\
    (
        features  = ["c", "cprogram"],
        source    = "ntldd.c",
        target    = "ntldd",
        use       = ["_ntldd", "imagehlp"],
    )

But NO!

WAF reckons I never told it to link a static library, imagehlp , for the executable.

From the build.log:

['D:\\mingw-builds\\x64-4.8.1-posix-seh-rev5\\mingw64\\bin\\gcc.exe', '-Wl,--enable-auto-import', 'ntldd.c.2.o', '-o', 'C:\\Users\\Administrator\\Documents\\Projects\\ntldd\\build\\ntldd.exe', '-Wl,-Bstatic', '-L.', '-l_ntldd', '-Wl,-Bdynamic']
err: .\lib_ntldd.a(libntldd.c.1.o): In function `BuildDepTree':
C:\Users\Administrator\Documents\Projects\ntldd\build/../libntldd.c:235: undefined reference to `__imp_MapAndLoad'
C:\Users\Administrator\Documents\Projects\ntldd\build/../libntldd.c:441: undefined reference to `__imp_UnMapAndLoad'
collect2.exe: error: ld returned 1 exit status

Note that it complains that it can't find MapAndLoad and UnMapAndLoad ; both functions are in imagehlp .

What's going on?

Answer 1

You should be using the stlib dictionary key to list existing system static libraries that you want to link (it looks like use is only for referencing other items you have produced in the same Waf build).

# a C application
ctx\
(
    features  = ["c", "cprogram"],
    source    = "ntldd.c",
    target    = "ntldd",
    use       = ["_ntldd"],
    stlib     = ["imagehlp"],
)

I found this in section 10.3 of the Waf Book . The API docs were not helpful.