[tor-bugs] #20530 [- Select a component]: undefined reference to 'munmap' and 'mmap' building tor on Windows

Tor Bug Tracker & Wiki blackhole at torproject.org
Wed Nov 2 03:54:12 UTC 2016


#20530: undefined reference to 'munmap' and 'mmap' building tor on Windows
--------------------------------------+-----------------
     Reporter:  ice                   |      Owner:
         Type:  defect                |     Status:  new
     Priority:  Medium                |  Milestone:
    Component:  - Select a component  |    Version:
     Severity:  Normal                |   Keywords:
Actual Points:                        |  Parent ID:
       Points:                        |   Reviewer:
      Sponsor:                        |
--------------------------------------+-----------------
 Using MinGW64 version 4.7.3-- thread model win32-- running naively (no
 cross-compile) inside msys2, I tried to build the tor-0.2.8.9 source
 downloaded from torproject.org.

 While configuring the build, I noticed I had to build and install
 libevent, openssl, and zlib, which I did. After that Configure didn't fail
 anymore, and I proceeded to build tor by issuing "make". It seemed to go
 pretty well until the linker wanted to build tor.exe. It failed and
 complained about undefined references. Here is the output after issuing
 the make command again.

 $ make
 make  all-am
 make[1]: Entering directory `/e/users/v/Desktop/nfolder/tor-0.2.8.9'
   CC       src/common/compat.o
 src/common/compat.c: In function 'tor_mmap_file':
 src/common/compat.c:273:3: warning: implicit declaration of function
 'getpagesize' [-Wimplicit-function-declaration]
   AR       src/common/libor.a
   CC       src/common/src_common_libor_testing_a-compat.o
 src/common/compat.c: In function 'tor_mmap_file':
 src/common/compat.c:273:3: warning: implicit declaration of function
 'getpagesize' [-Wimplicit-function-declaration]
   AR       src/common/libor-testing.a
   CCLD     src/or/tor.exe
 src/common/libor.a(compat.o): In function `tor_munmap_file':
 e:\users\v\Desktop\nfolder\tor-0.2.8.9/src/common/compat.c:312: undefined
 reference to `munmap'
 src/common/libor.a(compat.o): In function `tor_mmap_file':
 e:\users\v\Desktop\nfolder\tor-0.2.8.9/src/common/compat.c:285: undefined
 reference to `mmap'
 collect2.exe: error: ld returned 1 exit status
 make[1]: *** [src/or/tor.exe] Error 1
 make[1]: Leaving directory `/e/users/v/Desktop/nfolder/tor-0.2.8.9'
 make: *** [all] Error 2


 I have googled around and have not found an answer to solve this problem.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/20530>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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