Cygwin - Makefile-error recipe for target main o failed

Question

I am currently failing to write a good makefile and don t know the reason why    - -  This is my main c    include  lt windows h gt   include  lt stdio h gt   int main int argc  char  argv          printf  MEEEEEP       return  0       This is my makefile     make SYSTEM  OS  ENVIRONMENT    Binaries to use ifeq    ENVIRONMENT  MINGW    CXX     i686-pc-mingw32-g   else   CXX     g   endif REMOVE    rm -vf  RC        windres EXE        exe                                                                  Info  ifeq    CXX  g    INFO CXX   g   -dumpversion  g   -dumpmachine endif                                                                  Flags  DEBUG   -DDEBUG -g OPTIMIZATION   -O2  -Winline -finline-functions  CFLAGS   -Wall -Wextra -W -static   DEBUG    OPTIMIZATION  -D  SYSTEM  -D  OS  -D  ENVIRONMENT    PRGFLAGS   ifeq    SYSTEM  I686    CFLAGS      -m32    ifeq    OS  WIN32      CFLAGS    -D WIN32    endif    ifeq    ENVIRONMENT  MINGW      CFLAGS    -fexceptions    endif endif   LFLAGS                                                                        Files  CFILES        main c OBJS            CFILES  c  o                                                                   Include  INCLUDES        -I                                                                   Library  LIBRARIES                                                                         Targets  PHONY  all all           echo    Standard build  make SYSTEM I686 OS WIN32 ENVIRONMENT MINGW      echo      echo      make SYSTEM I686 OS WIN32 ENVIRONMENT MINGW gyro                                                                  Implicit rules and filename extensions      SUFFIXES   h  o  c   c o        h        echo Compiling   lt  for   SYSTEM    OS    ENVIRONMENT             echo MEEP         CXX    CFLAGS    INCLUDES  -c   lt  -o           echo MEEP2                                                                  Target rules gyro    OBJS         echo Building software for   SYSTEM             echo         CXX    CFLAGS    LFLAGS  -o     EXE    OBJS    LIBRARIES                                                                   Clean  PHONY  clean clean        REMOVE    OBJS                                                                    Info  PHONY  info info       echo       echo Information about C   Compiler Linker       echo        INFO CXX    When i type in make gyro  i receive the output   Compiling main c for Windows NT     MEEP g   -Wall -Wextra -W -static -DDEBUG -g -O2  -D -DWindows NT -D  -I  -c main c -o     main o makeNew mak 83  recipe for target  main o  failed make       main o  Error 1   But Line number 83 is behind  c o        h  And i don   t understand why  Does anyone have a solution for me

User · Accepted Answer

You see the two empty -D entries in the g   command line  They re causing the problem  You must have values in the -D items e g  -DWIN32  if you re insistent on using something like -D  SYSTEM  -D  ENVIRONMENT  then you can use something like   SYSTEM    generic ENVIRONMENT    generic   in the makefile which gives them default values   Your output looks to be missing the all important output    lt command-line gt  0 1  error  macro names must be identifiers  lt command-line gt  0 1  error  macro names must be identifiers   just to clarify  what actually got sent to g   was -D -DWindows NT  i e  define a preprocessor macro called -DWindows NT  which is of course not a valid identifier  similarly for -D -I

[c] Cygwin - Makefile-error: recipe for target `main.o' failed

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