使用CMake和GCC在Mac上构建静态库？

Question

问候所有,

我有一个静态库,我稍后将其与我的应用程序链接.我的开发环境是CMake,GCC(Linux,Mac),MinGW(Windows).

我可以在Linux和Windows上编译静态库而没有任何问题.(我甚至可以在Mac上的应用程序中构建共享库).

编辑:我将库编译为SHARED库,它运行良好!

我已按如下方式配置CMakeFile来构建静态库:

add_library(centi STATIC ${base_srcs} ${crv_srcs} ${node_srcs} ${trnk_srcs} ${defl_srcs} ${infl_srcs} ${track_srcs} ${callback_srcs} ${extract_srcs})

在链接阶段,它会产生以下错误并以某种方式构建"libcenti.a".

Linking C static library
lib/libcenti.a /usr/bin/ranlib: file:
lib/libcenti.a(crv_in_rgn_to_bnry_img.c.o)
has no symbols /usr/bin/ranlib: file:
lib/libcenti.a(crv_initialize_by_circle.c.o)
has no symbols /usr/bin/ranlib: file:
lib/libcenti.a(crv_initialize_flgs.c.o)
has no symbols /usr/bin/ranlib: file:
lib/libcenti.a(crv_nodal_interval_min_and_max.c.o)
has no symbols /usr/bin/ranlib: file:
lib/libcenti.a(crv_remove_all_nodes.c.o)
has no symbols /usr/bin/ranlib: file:
lib/libcenti.a(crv_reset_nodal_forces.c.o)
has no symbols /usr/bin/ranlib: file:
lib/libcenti.a(crv_set_center_coords.c.o)
has no symbols /usr/bin/ranlib: file:
lib/libcenti.a(crv_set_left_ptch_rgn_pixs.c.o)
has no symbols /usr/bin/ranlib: file:
lib/libcenti.a(crv_set_out_rgn_mean_and_var.c.o)
has no symbols /usr/bin/ranlib: file:
lib/libcenti.a(crv_set_para.c.o) has
no symbols /usr/bin/ranlib: file:
lib/libcenti.a(crv_set_right_ptch_rgn_pixs.c.o)
has no symbols /usr/bin/ranlib: file:
lib/libcenti.a(crv_to_in_rgn_hist.c.o)
has no symbols /usr/bin/ranlib: file:
lib/libcenti.a(crv_to_out_rgn_pixs.c.o)
has no symbols /usr/bin/ranlib: file:
lib/libcenti.a(trnk_initialize_by_circle.c.o)
has no symbols /usr/bin/ranlib: file:
lib/libcenti.a(trnk_initialize_by_image_frame.c.o)
has no symbols /usr/bin/ranlib: file:
lib/libcenti.a(trnk_stk_paint_nodes_and_pixs.c.o)
has no symbols /usr/bin/ranlib: file:
lib/libcenti.a(trnk_stk_to_inner_defl_ordn.c.o)
has no symbols

但是当我将上面的库链接到我的应用程序时,它会给出"未定义的符号"错误:

Undefined symbols:  
"_setActiveDrawingTrunk", referenced
from:
      RzPluginAlgoCnty::initCallBacks()     
in RzPluginAlgoCnty.cpp.o
      RzPluginAlgoCnty::clearCallBacks()    
in RzPluginAlgoCnty.cpp.o
      _trnk_trck_ordn in libcenti.a(trnk_trck_ordn.c.o)
      _trnk_trck_ordn in libcenti.a(trnk_trck_ordn.c.o)
      _trnk_trck_ordn in libcenti.a(trnk_trck_ordn.c.o)
      _trnk_trck_ordn in libcenti.a(trnk_trck_ordn.c.o)
      _bg_trnk_trck_ordn in libcenti.a(trnk_trck_ordn.c.o)
      _bg_trnk_trck_ordn in libcenti.a(trnk_trck_ordn.c.o)
      _extract_contour_update_tracking in
libcenti.a(extract_contour_update_tracking.c.o)
      _extract_contour_update_tracking in
libcenti.a(extract_contour_update_tracking.c.o)
"_updateCurveUICallBack", referenced
from:
      RzPluginAlgoCnty::initCallBacks()     
in RzPluginAlgoCnty.cpp.o
      RzPluginAlgoCnty::initBulkCallBacks() 
in RzPluginAlgoCnty.cpp.o
      RzPluginAlgoCnty::clearCallBacks()    
in RzPluginAlgoCnty.cpp.o
      _bg_trnk_trck_ordn in libcenti.a(trnk_trck_ordn.c.o)
      _bg_trnk_trck_ordn in libcenti.a(trnk_trck_ordn.c.o)
      _crv_update_1time in libcenti.a(crv_update_ordn.c.o)
      _crv_update_1time in libcenti.a(crv_update_ordn.c.o) ld:
symbol(s) not found

有小费吗 ？在Mac上构建静态库时,我应该添加任何特殊参数吗？

编辑:我将库编译为SHARED库,它运行良好!

Answer 1

不幸的是,设置-no_warning_for_no_symbols可能还不够.该AR在Mac上的命令将运行ranlib的你,这会导致"无符号的/ usr/bin中/ ranlib的"要显示的消息.您可以使用以下CMake规则在Mac上停止此消息:

SET(CMAKE_C_ARCHIVE_CREATE   "<CMAKE_AR> Scr <TARGET> <LINK_FLAGS> <OBJECTS>")
SET(CMAKE_CXX_ARCHIVE_CREATE "<CMAKE_AR> Scr <TARGET> <LINK_FLAGS> <OBJECTS>")
SET(CMAKE_C_ARCHIVE_FINISH   "<CMAKE_RANLIB> -no_warning_for_no_symbols -c <TARGET>")
SET(CMAKE_CXX_ARCHIVE_FINISH "<CMAKE_RANLIB> -no_warning_for_no_symbols -c <TARGET>")

ARCHIVE_CREATE"Scr"设置将阻止ar为您运行ranlib.ARCHIVE_FINISH设置会因为抱怨丢失的符号而禁止使用ranlib.

您需要使用这两组规则来堵塞"无符号"消息.

CMake新手的另一件事:CMake为ar和ranlib命令生成的命令被转储到link.txt文件中.如果您在生成存档时遇到问题,可能需要查看link.txt以查看CMake正在为您做什么.

Answer 2

警告ranlib表明这些目标文件不包含操作代码.您需要查看每个相应的源文件,以查看它包含的代码是否应该在Mac上编译.可能是代码被移植到其他地方,但条件编译无法正确识别Mac.

这不是'扣篮'的诊断; 丢失的符号显然分为两组 - 与之相关的符号trnk和与之相关的符号crv- 文件同样分为两组(前缀trnk和crv),但可能是文件定义了不同的功能.所以,我会查看与空目标文件相对应的源文件,看看是否可以看到缺少的函数(可能忽略报告的缺失符号名称的前导下划线).如果在这些文件中定义了这些功能,那么您必须查看来自的投诉ranlib.

有时,如果在不方便的时刻耗尽磁盘空间,则可能会有零大小的目标文件(因此不包含符号).在这种情况下,只需删除空对象文件(并释放一些空间,但您必须已经完成)并再次构建.

Answer 3

这里讨论了MacOSX上静态库的类似问题:http: //lists.macosforge.org/pipermail/macports-tickets/2008-June/010680.html

尝试完全清理并运行不平行的构建.

而本指南建议安装的MacPorts,然后在"sudo的港口安装AUTOGEN的autoconf automake的纳米libtool的libsdl patchutils颠覆wget的gmake命令",然后出口PATH = "在/ usr/local/bin目录:在/ usr/local/sbin中:$ PATH"