I corrected 'PERL=' to include the executable. I tried again. ./configure PERL=/c/EnterpriseDB/LanguagePack/9.5/x64/Perl-5.20/bin/perl5.20.3.exe --with-perl --with-includes=/c/EnterpriseDB/LanguagePack/9.5/x64/Perl-5.20/lib/CORE:/c/Users/AnonymousUser/Documents/zlib-1.2.8-win32-x86_64/include --with-libraries=/c/EnterpriseDB/LanguagePack/9.5/x64/Perl-5.20/bin:/c/EnterpriseDB/LanguagePack/9.5/x64/Perl-5.20/lib/CORE:/c/Users/AnonymousUser/Documents/zlib-1.2.8-win32-x86_64/bin:/c/Users/AnonymousUser/Documents/zlib-1.2.8-win32-x86_64/lib --host=x86_64-w64-mingw32 --prefix=/usr/local/pgsql_0ab9c56_debug --disable-rpath --enable-depend --enable-cassert --enable-debug --with-extra-version=_CFLAGS_O_0ab9c56 CFLAGS="-O -fno-omit-frame-pointer" 2>&1 | tee configure_OPTIONS_EnterpriseDB_PERL_without_SUBDIR_sys.txt
Relevant output is the following. checking whether to build Perl modules... yes configure: using perl 5.20.3 checking for Perl archlibexp... C:/EnterpriseDB/LanguagePack/9.5/x64/Perl-5.20/lib checking for Perl privlibexp... C:/EnterpriseDB/LanguagePack/9.5/x64/Perl-5.20/lib checking for Perl useshrplib... true checking for flags to link embedded Perl... -LC:/EnterpriseDB/LanguagePack/9.5/x64/Perl-5.20/lib/CORE -lperl520 checking for perl.h... yes checking for libperl... yes configure: using CPPFLAGS= -I./src/include/port/win32 -DEXEC_BACKEND -I/c/EnterpriseDB/LanguagePack/9.5/x64/Perl-5.20/lib/CORE -I/c/Users/AnonymousUser/Documents/zlib-1.2.8-win32-x86_64/include configure: using LDFLAGS= -Wl,--allow-multiple-definition -Wl,--disable-auto-import -L/c/EnterpriseDB/LanguagePack/9.5/x64/Perl-5.20/bin -L/c/EnterpriseDB/LanguagePack/9.5/x64/Perl-5.20/lib/CORE -L/c/Users/AnonymousUser/Documents/zlib-1.2.8-win32-x86_64/bin -L/c/Users/AnonymousUser/Documents/zlib-1.2.8-win32-x86_64/lib -Wl,--as-needed I try to 'make' make 2>&1 | tee make_ALONE_OPTIONS_EnterpriseDB_PERL_without_SUBDIR_sys.txt But now within the 'make', I am getting complaints saying "warning: win32_FUNCTION redefined." x86_64-w64-mingw32-gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -Wmissing-format-attribute -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -g -O -fno-omit-frame-pointer -I../../src/port -I../../src/include -I./src/include/port/win32 -DEXEC_BACKEND -I/c/EnterpriseDB/LanguagePack/9.5/x64/Perl-5.20/lib/CORE -I/c/Users/AnonymousUser/Documents/zlib-1.2.8-win32-x86_64/include "-I../../src/include/port/win32" -DBUILDING_DLL -c path.c -o path_srv.o In file included from c:/EnterpriseDB/LanguagePack/9.5/x64/Perl-5.20/lib/CORE/netdb.h:10:0, from ../../src/include/port.h:17, from ../../src/include/c.h:1105, from ../../src/include/postgres.h:47, from path.c:17: c:/EnterpriseDB/LanguagePack/9.5/x64/Perl-5.20/lib/CORE/sys/socket.h:272:0: warning: "socket" redefined #define socket win32_socket In file included from ../../src/include/c.h:101:0, from ../../src/include/postgres.h:47, from path.c:17: ../../src/include/pg_config_os.h:379:0: note: this is the location of the previous definition #define socket(af, type, protocol) pgwin32_socket(af, type, protocol) In file included from c:/EnterpriseDB/LanguagePack/9.5/x64/Perl-5.20/lib/CORE/netdb.h:10:0, from ../../src/include/port.h:17, from ../../src/include/c.h:1105, from ../../src/include/postgres.h:47, from path.c:17: c:/EnterpriseDB/LanguagePack/9.5/x64/Perl-5.20/lib/CORE/sys/socket.h:273:0: warning: "bind" redefined #define bind win32_bind These complaints go on and on, but they are all similar. They seem to be complaints about networking functions begin re-defined win32_* E.g. win32_connect These function headers are found in the python subdirectory and files. CORE/sys/socket.h CORE/netdb.h They were most like likely included by using the ./configure line --with-includes option --with-includes=/c/EnterpriseDB/LanguagePack/9.5/x64/Perl-5.20/lib/CORE Note, perl.h lives in lib/CORE, so I am not sure about removing that option. Eventually, these complaints lead to . . . x86_64-w64-mingw32-gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -Wmissing-format-attribute -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -g -O -fno-omit-frame-pointer -shared -static-libgcc -o libpq.dll fe-auth.o fe-connect.o fe-exec.o fe-misc.o fe-print.o fe-lobj.o fe-protocol2.o fe-protocol3.o pqexpbuffer.o fe-secure.o libpq-events.o chklocale.o inet_net_ntop.o noblock.o pgstrcasecmp.o pqsignal.o thread.o crypt.o inet_aton.o strlcpy.o getaddrinfo.o open.o system.o win32error.o win32setlocale.o snprintf.o encnames.o wchar.o ip.o md5.o pgsleep.o win32.o libpqrc.o pthread-win32.o libpqdll.def -L../../../src/port -L../../../src/common -Wl,--allow-multiple-definition -Wl,--disable-auto-import -L/c/EnterpriseDB/LanguagePack/9.5/x64/Perl-5.20/bin -L/c/EnterpriseDB/LanguagePack/9.5/x64/Perl-5.20/lib/CORE -L/c/Users/AnonymousUser/Documents/zlib-1.2.8-win32-x86_64/bin -L/c/Users/AnonymousUser/Documents/zlib-1.2.8-win32-x86_64/lib -Wl,--as-needed -lshell32 -lws2_32 -lsecur32 -lpgcommon -lz -lws2_32 -lm -lws2_32 -Wl,--out-implib=libpq.a fe-connect.o: In function `internal_cancel': c:\postgres-master_0ab9c56_debug\src\interfaces\libpq/fe-connect.c:3241: undefined reference to `win32_socket' c:\postgres-master_0ab9c56_debug\src\interfaces\libpq/fe-connect.c:3247: undefined reference to `win32_connect' c:\postgres-master_0ab9c56_debug\src\interfaces\libpq/fe-connect.c:3313: undefined reference to `win32_closesocket' c:\postgres-master_0ab9c56_debug\src\interfaces\libpq/fe-connect.c:3263: undefined reference to `win32_htonl' c:\postgres-master_0ab9c56_debug\src\interfaces\libpq/fe-connect.c:3264: undefined reference to `win32_htonl' c:\postgres-master_0ab9c56_debug\src\interfaces\libpq/fe-connect.c:3265: undefined reference to `win32_htonl' c:\postgres-master_0ab9c56_debug\src\interfaces\libpq/fe-connect.c:3266: undefined reference to `win32_htonl' c:\postgres-master_0ab9c56_debug\src\interfaces\libpq/fe-connect.c:3269: undefined reference to `win32_send' c:\postgres-master_0ab9c56_debug\src\interfaces\libpq/fe-connect.c:3286: undefined reference to `win32_recv' c:\postgres-master_0ab9c56_debug\src\interfaces\libpq/fe-connect.c:3295: undefined reference to `win32_closesocket' fe-connect.o: In function `pqDropConnection': c:\postgres-master_0ab9c56_debug\src\interfaces\libpq/fe-connect.c:406: undefined reference to `win32_closesocket' fe-connect.o: In function `PQconnectPoll': c:\postgres-master_0ab9c56_debug\src\interfaces\libpq/fe-connect.c:1714: undefined reference to `win32_socket' fe-connect.o: In function `connectNoDelay': c:\postgres-master_0ab9c56_debug\src\interfaces\libpq/fe-connect.c:1097: undefined reference to `win32_setsockopt' fe-connect.o: In function `PQconnectPoll': c:\postgres-master_0ab9c56_debug\src\interfaces\libpq/fe-connect.c:1859: undefined reference to `win32_connect' c:\postgres-master_0ab9c56_debug\src\interfaces\libpq/fe-connect.c:1925: undefined reference to `win32_getsockopt' c:\postgres-master_0ab9c56_debug\src\interfaces\libpq/fe-connect.c:1958: undefined reference to `win32_getsockname' fe-misc.o: In function `pqSocketPoll': c:\postgres-master_0ab9c56_debug\src\interfaces\libpq/fe-misc.c:1171: undefined reference to `win32_select' fe-misc.o: In function `pqGetInt': c:\postgres-master_0ab9c56_debug\src\interfaces\libpq/fe-misc.c:284: undefined reference to `win32_ntohs' c:\postgres-master_0ab9c56_debug\src\interfaces\libpq/fe-misc.c:291: undefined reference to `win32_ntohl' fe-misc.o: In function `pqPutInt': c:\postgres-master_0ab9c56_debug\src\interfaces\libpq/fe-misc.c:320: undefined reference to `win32_htons' c:\postgres-master_0ab9c56_debug\src\interfaces\libpq/fe-misc.c:325: undefined reference to `win32_htonl' fe-misc.o: In function `pqPutMsgEnd': c:\postgres-master_0ab9c56_debug\src\interfaces\libpq/fe-misc.c:603: undefined reference to `win32_htonl' collect2.exe: error: ld returned 1 exit status make[3]: *** [libpq.dll] Error 1 make[3]: Leaving directory `/c/postgres-master_0ab9c56_debug/src/interfaces/libpq' make[2]: *** [all-libpq-recurse] Error 2 make[2]: Leaving directory `/c/postgres-master_0ab9c56_debug/src/interfaces' make[1]: *** [all-interfaces-recurse] Error 2 make[1]: Leaving directory `/c/postgres-master_0ab9c56_debug/src' make: *** [all-src-recurse] Error 2 Thanks, Andre Mikulec andre_miku...@hotmail.com ________________________________ From: Andre Mikulec <andre_miku...@hotmail.com> Sent: Friday, October 21, 2016 1:37 AM To: Tom Lane Cc: pgsql-general@postgresql.org Subject: Re: [GENERAL] configure PostgreSQL with PERL: Perl version 5.8 or later is required, but this is . Tom, I m getting this. TargetUser@TARGETMACH ~ $ perl -v This is perl, v5.8.8 built for msys-64int 5.8.8 is not right. See later emails. Andre Mikulec andre_miku...@hotmail.com ________________________________ From: Tom Lane <t...@sss.pgh.pa.us> Sent: Thursday, October 20, 2016 9:54 AM To: Andre Mikulec Cc: pgsql-general@postgresql.org Subject: Re: [GENERAL] configure PostgreSQL with PERL: Perl version 5.8 or later is required, but this is . Andre Mikulec <andre_miku...@hotmail.com> writes: > I am getting the error message. > *** The installed version of Perl, > /c/EnterpriseDB/LanguagePack/9.5/x64/Perl-5.20/bin, is too old to use with > PostgreSQL. > *** Perl version 5.8 or later is required, but this is . > configure: WARNING: > *** Without Perl you will not be able to build PostgreSQL from Git. > *** You can obtain Perl from any CPAN mirror site. > *** (If you are using the official distribution of PostgreSQL then you do not > *** need to worry about this, because the Perl output is pre-generated.) > configure: error: Perl not found > Why does it say, "Perl version 5.8 or later is required, but this is ."? It's trying to extract the Perl version number from the output of "perl -v", and evidently failing to find one. What does "perl -v" print with that version of Perl? regards, tom lane