[ruby-core:76816] [Ruby trunk Bug#12663][Open] Compilation error on cygwin

Issue #12663 has been updated by Martin Dürst.

File mkmf.log added
File Makefile added
File extconf.h added
Status changed from Closed to Open

I'm sorry, but r55849 did not fix this at all. I still get exactly the same error messages. I'm attaching various files that have been created in ext/win32/resolv.

----------------------------------------
Bug #12663: Compilation error on cygwin
https://bugs.ruby-lang.org/issues/12663#change-60043

* Author: Martin Dürst
* Status: Open
* Priority: Normal
* Assignee: Nobuyoshi Nakada
* ruby -v: ruby 2.4.0dev (2016-07-30 trunk 55776) [x86_64-cygwin]
* Backport: 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN
----------------------------------------
I get the errors below when compiling on cygwin. The problem may already be two or three days old; I'm sorry I overlooked it.

```
make[2]: Entering directory '/cygdrive/c/Data/ruby/ext/win32/resolv'
compiling resolv.c
In file included from /usr/include/w32api/ras.h:15:0,
                 from /usr/include/w32api/mprapi.h:10,
                 from /usr/include/w32api/iprtrmib.h:9,
                 from /usr/include/w32api/iphlpapi.h:17,
                 from resolv.c:3:
/usr/include/w32api/_bsd_types.h:30:27: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘__ms_u_long’
 typedef unsigned __LONG32 u_long;
                           ^
/usr/include/w32api/inaddr.h:21:5: error: unknown type name ‘__ms_u_long’
     u_long S_addr;
     ^
In file included from /usr/include/w32api/ras.h:16:0,
                 from /usr/include/w32api/mprapi.h:10,
                 from /usr/include/w32api/iprtrmib.h:9,
                 from /usr/include/w32api/iphlpapi.h:17,
                 from resolv.c:3:
/usr/include/w32api/_bsd_types.h:30:27: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘__ms_u_long’
 typedef unsigned __LONG32 u_long;
                           ^
In file included from ../../.././include/ruby/ruby.h:36:0,
                 from ../../.././include/ruby.h:33,
                 from resolv.c:1:
resolv.c: In function ‘w32error_init’:
resolv.c:8:33: warning: implicit declaration of function ‘rb_w32_strerror’ [-Wimplicit-function-declaration]
     VALUE str = rb_str_new_cstr(rb_w32_strerror(NUM2INT(code)));
                                 ^
../../.././include/ruby/defines.h:88:53: note: in definition of macro ‘RB_GNUC_EXTENSION_BLOCK’
 #define RB_GNUC_EXTENSION_BLOCK(x) __extension__ ({ x; })
                                                     ^
resolv.c:8:17: note: in expansion of macro ‘rb_str_new_cstr’
     VALUE str = rb_str_new_cstr(rb_w32_strerror(NUM2INT(code)));
                 ^
resolv.c:8:33: warning: passing argument 1 of ‘strlen’ makes pointer from integer without a cast [-Wint-conversion]
     VALUE str = rb_str_new_cstr(rb_w32_strerror(NUM2INT(code)));
                                 ^
../../.././include/ruby/defines.h:88:53: note: in definition of macro ‘RB_GNUC_EXTENSION_BLOCK’
 #define RB_GNUC_EXTENSION_BLOCK(x) __extension__ ({ x; })
                                                     ^
resolv.c:8:17: note: in expansion of macro ‘rb_str_new_cstr’
     VALUE str = rb_str_new_cstr(rb_w32_strerror(NUM2INT(code)));
                 ^
In file included from /usr/include/stdio.h:29:0,
                 from ../../.././include/ruby/defines.h:95,
                 from ../../.././include/ruby/ruby.h:36,
                 from ../../.././include/ruby.h:33,
                 from resolv.c:1:
/usr/include/string.h:33:9: note: expected ‘const char *’ but argument is of type ‘int’
 size_t  _EXFUN(strlen,(const char *));
         ^
In file included from ../../.././include/ruby/ruby.h:36:0,
                 from ../../.././include/ruby.h:33,
                 from resolv.c:1:
../../.././include/ruby/intern.h:801:20: warning: passing argument 1 of ‘rb_str_new_static’ makes pointer from integer without a cast [-Wint-conversion]
  rb_str_new_static((str), (long)strlen(str)) : \
                    ^
../../.././include/ruby/defines.h:88:53: note: in definition of macro ‘RB_GNUC_EXTENSION_BLOCK’
 #define RB_GNUC_EXTENSION_BLOCK(x) __extension__ ({ x; })
                                                     ^
resolv.c:8:17: note: in expansion of macro ‘rb_str_new_cstr’
     VALUE str = rb_str_new_cstr(rb_w32_strerror(NUM2INT(code)));
                 ^
In file included from ../../.././include/ruby/ruby.h:1980:0,
                 from ../../.././include/ruby.h:33,
                 from resolv.c:1:
../../.././include/ruby/intern.h:726:7: note: expected ‘const char *’ but argument is of type ‘int’
 VALUE rb_str_new_static(const char *, long);
       ^
In file included from ../../.././include/ruby/ruby.h:36:0,
                 from ../../.././include/ruby.h:33,
                 from resolv.c:1:
resolv.c:8:33: warning: passing argument 1 of ‘rb_str_new_cstr’ makes pointer from integer without a cast [-Wint-conversion]
     VALUE str = rb_str_new_cstr(rb_w32_strerror(NUM2INT(code)));
                                 ^
../../.././include/ruby/defines.h:88:53: note: in definition of macro ‘RB_GNUC_EXTENSION_BLOCK’
 #define RB_GNUC_EXTENSION_BLOCK(x) __extension__ ({ x; })
                                                     ^
resolv.c:8:17: note: in expansion of macro ‘rb_str_new_cstr’
     VALUE str = rb_str_new_cstr(rb_w32_strerror(NUM2INT(code)));
                 ^
In file included from ../../.././include/ruby/ruby.h:1980:0,
                 from ../../.././include/ruby.h:33,
                 from resolv.c:1:
../../.././include/ruby/intern.h:706:7: note: expected ‘const char *’ but argument is of type ‘int’
 VALUE rb_str_new_cstr(const char*);
       ^
resolv.c: At top level:
cc1: warning: unrecognized command line option ‘-Wno-self-assign’
cc1: warning: unrecognized command line option ‘-Wno-constant-logical-operand’
cc1: warning: unrecognized command line option ‘-Wno-parentheses-equality’
cc1: warning: unrecognized command line option ‘-Wno-tautological-compare’
make[2]: *** [Makefile:247: resolv.o] Error 1
make[2]: Leaving directory '/cygdrive/c/Data/ruby/ext/win32/resolv'
make[1]: *** [exts.mk:257: ext/win32/resolv/all] Error 2
make[1]: Leaving directory '/cygdrive/c/Data/ruby'
make: *** [uncommon.mk:217: build-ext] Error 2
        CC = gcc
        LD = ld
        LDSHARED = gcc -shared
        CFLAGS = -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wno-tautological-compare -Wno-parentheses-equality -Wno-constant-logical-operand -Wno-self-assign -Wunused-variable -Werror=implicit-int -Werror=pointer-arith -Werror=write-strings -Werror=declaration-after-statement -Werror=implicit-function-declaration -Werror=deprecated-declarations -Wno-packed-bitfield-compat -Wsuggest-attribute=noreturn -Wsuggest-attribute=format -Wno-maybe-uninitialized
        XCFLAGS = -D_FORTIFY_SOURCE=2 -fstack-protector -fno-strict-overflow -fvisibility=hidden -fexcess-precision=standard -DRUBY_EXPORT
        CPPFLAGS = -D_XOPEN_SOURCE -D_GNU_SOURCE   -I. -I.ext/include/x86_64-cygwin -I./include -I. -I./enc/unicode/data/8.0.0
        DLDFLAGS = -Wl,--enable-auto-image-base,--enable-auto-import -Wl,--out-implib=libruby240.dll.a cygruby240.def -fstack-protector -Wl,--stack,0x00200000,--enable-auto-import
        SOLIBS = cygruby240.res.o -lpthread -ldl
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-pc-cygwin/5.4.0/lto-wrapper.exe
Target: x86_64-pc-cygwin
Configured with: /cygdrive/i/szsz/tmpp/gcc/gcc-5.4.0-1.x86_64/src/gcc-5.4.0/configure --srcdir=/cygdrive/i/szsz/tmpp/gcc/gcc-5.4.0-1.x86_64/src/gcc-5.4.0 --prefix=/usr --exec-prefix=/usr --localstatedir=/var --sysconfdir=/etc --docdir=/usr/share/doc/gcc --htmldir=/usr/share/doc/gcc/html -C --build=x86_64-pc-cygwin --host=x86_64-pc-cygwin --target=x86_64-pc-cygwin --without-libiconv-prefix --without-libintl-prefix --libexecdir=/usr/lib --enable-shared --enable-shared-libgcc --enable-static --enable-version-specific-runtime-libs --enable-bootstrap --enable-__cxa_atexit --with-dwarf2 --with-tune=generic --enable-languages=ada,c,c++,fortran,lto,objc,obj-c++ --enable-graphite --enable-threads=posix --enable-libatomic --enable-libcilkrts --enable-libgomp --enable-libitm --enable-libquadmath --enable-libquadmath-support --enable-libssp --enable-libada --enable-libgcj-sublibs --disable-java-awt --disable-symvers --with-ecj-jar=/usr/share/java/ecj.jar --with-gnu-ld --with-gnu-as --with-cloog-include=/usr/include/cloog-isl --without-libiconv-prefix --without-libintl-prefix --with-system-zlib --enable-linker-build-id --with-default-libstdcxx-abi=gcc4-compatible
Thread model: posix
gcc version 5.4.0 (GCC)
generating prelude.c
prelude.c unchanged
```

---Files--------------------------------
mkmf.log (89 Bytes)
Makefile (8.37 KB)
extconf.h (43 Bytes)


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