Full_Name: Jeremy Jin Version: 2.4 OS: mingw and ubuntu URL: Submission from: (NULL) (209.29.4.43) I am trying to build mingw in two different situations, 1. on mingw 2. cross build from ubuntu 14 for target arm linux In both situation I found that, some dependencies (such as regex) does not exist in system default /usr/include. So I download regex from somewhere and build it. Then I need to specify a custom CFLAGS for configure command such as below ./configure CFLAGS=-I/home/user1/include LDFLAGS=-L/home/user1/lib LIBS=-lregex the configuration run successfully,then I proceed to do "make depend". However it will report "regex.h" file not found. And I found that "mkdep" command does not make use of the CFLAGS I provided on configure command at all. I worked around it by create another mkdep command to wrap the existing mkdep command and add my additional include folders and it worked. Then next issue I found is I had to modify "portable.h" file as well. I had to comment out "#define socklen_t int" and add "typedef unsigned int uint32_t". I am not sure why the portable.h is not generated correctly (this only happens on mingw, not tested on ubuntu cross compiling ARM at all).