Hey everyone (especially cygwin people),
   I've been trying for the past 2 hours to build sage 5.11.beta3 on 
cygwin64, however it continuously fails when building zlib. I've 
multiple-checked that I've installed all of the dependencies (and 
overkilled on some of them too), and I've installed zlib ver 1.2.8 directly 
on cygwin, although sage installation doesn't seem recognize it (same 
version). Any idea on how to get this to work? I've tried rebasing, 
deleting the partial installation, deleting the entire build. I'm running 
off a Windows Vista home premium OS. Below is the relavent portion of the 
log file. Any help is greatly appreciated.
 
Thank you,
Travis
 
 
make[2]: Leaving directory `/home/Travis/sage-5.11.beta3/spkg' 
env SAGE_BUILD_TOOLCHAIN=yes make -j2 toolchain 
make[2]: Entering directory `/home/Travis/sage-5.11.beta3/spkg' 
make[2]: warning: -jN forced in submake: disabling jobserver mode. 
make[2]: Nothing to be done for `toolchain'. 
make[2]: Leaving directory `/home/Travis/sage-5.11.beta3/spkg' 
make -j2 toolchain-deps 
make[2]: Entering directory `/home/Travis/sage-5.11.beta3/spkg' 
make[2]: warning: -jN forced in submake: disabling jobserver mode. 
make -j2 /home/Travis/sage-5.11.beta3/spkg/installed/zlib-1.2.8 
make[3]: Entering directory `/home/Travis/sage-5.11.beta3/spkg' 
make[3]: warning: -jN forced in submake: disabling jobserver mode. 
/home/Travis/sage-5.11.beta3/spkg/pipestatus "sage-spkg ${SAGE_SPKG_OPTS} 
zlib-1 .2.8 2>&1" "tee -a 
/home/Travis/sage-5.11.beta3/logs/pkgs/zlib-1.2.8.log" 
Found package zlib-1.2.8 in spkg/standard/zlib-1.2.8.spkg 
zlib-1.2.8 
==================================================== 
Extracting package 
/home/Travis/sage-5.11.beta3/spkg/standard/zlib-1.2.8.spkg 
-rwxr-xr-x 1 Administrators None 532210 Jun 6 01:26 
/home/Travis/sage-5.11.beta 3/spkg/standard/zlib-1.2.8.spkg 
Finished extraction 
**************************************************** 
Host system: 
CYGWIN_NT-6.0 Travis-Notebook 1.7.22(0.268/5/3) 2013-07-22 17:06 x86_64 
Cygwin 
**************************************************** 
C compiler: gcc 
C compiler version: 
Using built-in specs. 
COLLECT_GCC=gcc 
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-pc-cygwin/4.8.1/lto-wrapper.exe 
Target: x86_64-pc-cygwin 
Configured with: /usr/src/ports/gcc/gcc-4.8.1-1/src/gcc-4.8.1/configure 
--srcdir =/usr/src/ports/gcc/gcc-4.8.1-1/src/gcc-4.8.1 --prefix=/usr 
--exec-prefix=/usr - -bindir=/usr/bin --sbindir=/usr/sbin 
--libexecdir=/usr/lib --datadir=/usr/share --localstatedir=/var 
--sysconfdir=/etc --datarootdir=/usr/share --docdir=/usr/sh are/doc/gcc -C 
--build=x86_64-pc-cygwin --host=x86_64-pc-cygwin --target=x86_64- pc-cygwin 
--without-libiconv-prefix --without-libintl-prefix --enable-shared --e 
nable-shared-libgcc --enable-static --enable-version-specific-runtime-libs 
--ena ble-bootstrap --disable-__cxa_atexit --with-dwarf2 
--with-tune=generic --enable- languages=c,c++,fortran,lto,objc,obj-c++ 
--enable-graphite --enable-threads=posi x --enable-libatomic 
--enable-libgomp --disable-libitm --enable-libquadmath --en 
able-libquadmath-support --enable-libssp --enable-libgcj-sublibs 
--disable-java- awt --disable-symvers 
--with-ecj-jar=/usr/share/java/ecj.jar --with-gnu-ld --wit h-gnu-as 
--with-cloog-include=/usr/include/cloog-isl --without-libiconv-prefix - 
-without-libintl-prefix --with-system-zlib 
Thread model: posix 
gcc version 4.8.1 (GCC) 
**************************************************** 
make[4]: Entering directory 
`/home/Travis/sage-5.11.beta3/spkg/build/zlib-1.2.8/ 
src' 
gcc -O3 -Wall -c -o adler32.o adler32.c 
gcc -O3 -Wall -c -o compress.o compress.c 
gcc -O3 -Wall -c -o crc32.o crc32.c 
gcc -O3 -Wall -c -o deflate.o deflate.c 
gcc -O3 -Wall -c -o gzclose.o gzclose.c 
gcc -O3 -Wall -c -o gzlib.o gzlib.c 
gzlib.c: In function ‘gz_open’: 
gzlib.c:256:9: warning: implicit declaration of function ‘lseek’ 
[-Wimplicit-fun ction-declaration] 
 state->start = LSEEK(state->fd, 0, SEEK_CUR); 
 ^ 
gcc -O3 -Wall -c -o gzread.o gzread.c 
gzread.c: In function ‘gz_load’: 
gzread.c:30:9: warning: implicit declaration of function ‘read’ 
[-Wimplicit-func tion-declaration] 
 ret = read(state->fd, buf + *have, len - *have); 
 ^ 
gzread.c: In function ‘gzclose_r’: 
gzread.c:591:5: warning: implicit declaration of function ‘close’ 
[-Wimplicit-fu nction-declaration] 
 ret = close(state->fd); 
 ^ 
gcc -O3 -Wall -c -o gzwrite.o gzwrite.c 
gcc -O3 -Wall -c -o infback.o infback.c 
gzwrite.c: In function ‘gz_comp’: 
gzwrite.c:84:9: warning: implicit declaration of function ‘write’ 
[-Wimplicit-fu nction-declaration] 
 got = write(state->fd, strm->next_in, strm->avail_in); 
 ^ 
gzwrite.c: In function ‘gzclose_w’: 
gzwrite.c:573:5: warning: implicit declaration of function ‘close’ 
[-Wimplicit-f unction-declaration] 
 if (close(state->fd) == -1) 
 ^ 
gcc -O3 -Wall -c -o inffast.o inffast.c 
gcc -O3 -Wall -c -o inflate.o inflate.c 
gcc -O3 -Wall -c -o inftrees.o inftrees.c 
gcc -O3 -Wall -c -o trees.o trees.c 
gcc -O3 -Wall -c -o uncompr.o uncompr.c 
gcc -O3 -Wall -c -o zutil.o zutil.c 
windres --define GCC_WINDRES -o zlibrc.o win32/zlib1.rc 
gcc -O3 -Wall -I. -c -o example.o test/example.c 
gcc -O3 -Wall -I. -c -o minigzip.o test/minigzip.c 
ar rcs libz.a adler32.o compress.o crc32.o deflate.o gzclose.o gzlib.o 
gzread.o gzwrite.o infback.o inffast.o inflate.o inftrees.o trees.o 
uncompr.o zutil.o 
gcc -shared -Wl,--out-implib,libz.dll.a \ 
-o zlib1.dll win32/zlib.def adler32.o compress.o crc32.o deflate.o 
gzclose.o gzl ib.o gzread.o gzwrite.o infback.o inffast.o inflate.o 
inftrees.o trees.o uncomp r.o zutil.o zlibrc.o 
gcc -o minigzip.exe minigzip.o libz.a 
strip minigzip.exe 
Cannot export gzopen_w: symbol not defined 
collect2: error: ld returned 1 exit status 
Makefile:96: recipe for target `zlib1.dll' failed 
make[4]: *** [zlib1.dll] Error 1 
make[4]: *** Waiting for unfinished jobs.... 
make[4]: Leaving directory 
`/home/Travis/sage-5.11.beta3/spkg/build/zlib-1.2.8/s rc' 
Error building zlib. 
real 0m7.816s 
user 0m6.829s 
sys 0m2.199s 
************************************************************************ 
Error installing package zlib-1.2.8 
************************************************************************ 
Please email sage-devel (http://groups.google.com/group/sage-devel) 
explaining the problem and including the relevant part of the log file 
 /home/Travis/sage-5.11.beta3/logs/pkgs/zlib-1.2.8.log 
Describe your computer, operating system, etc. 
If you want to try to fix the problem yourself, *don't* just cd to 
/home/Travis/sage-5.11.beta3/spkg/build/zlib-1.2.8 and type 'make' or 
whatever i s appropriate. 
Instead, the following commands setup all environment variables 
correctly and load a subshell for you to debug the error: 
 (cd '/home/Travis/sage-5.11.beta3/spkg/build/zlib-1.2.8' && 
'/home/Travis/sage -5.11.beta3/sage' --sh) 
When you are done debugging, you can type "exit" to leave the subshell. 
************************************************************************ 
Makefile:478: recipe for target 
`/home/Travis/sage-5.11.beta3/spkg/installed/zli b-1.2.8' failed 
make[3]: *** [/home/Travis/sage-5.11.beta3/spkg/installed/zlib-1.2.8] Error 
1 
make[3]: Leaving directory `/home/Travis/sage-5.11.beta3/spkg' 
Makefile:248: recipe for target `toolchain-deps' failed 
make[2]: *** [toolchain-deps] Error 2 
make[2]: Leaving directory `/home/Travis/sage-5.11.beta3/spkg' 
Makefile:139: recipe for target `all' failed 
make[1]: *** [all] Error 2 
make[1]: Leaving directory `/home/Travis/sage-5.11.beta3/spkg' 
real 2m15.845s 
user 0m43.115s 
sys 1m4.234s 
*************************************************************** 
Error building Sage. 
The following package(s) may have failed to build: 
package: zlib-1.2.8 
log file: /home/Travis/sage-5.11.beta3/logs/pkgs/zlib-1.2.8.log 
build directory: /home/Travis/sage-5.11.beta3/spkg/build/zlib-1.2.8 
The build directory may contain configuration files and other potentially 
helpful information. WARNING: if you now run 'make' again, the build 
directory will, by default, be deleted. Set the environment variable 
SAGE_KEEP_BUILT_SPKGS to 'yes' to prevent this. 
Makefile:19: recipe for target `build' failed 
make: *** [build] Error 1

 

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