https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71770
Bug ID: 71770 Summary: gfortran: internal compiler error: Segmentation fault (program f951) Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran Assignee: unassigned at gcc dot gnu.org Reporter: ibichind at oswego dot edu Target Milestone: --- Created attachment 38835 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=38835&action=edit ecgpuwave program to compile the exact version: GNU Fortran (GCC) 5.4.0 the system type: Cygwin latest version on Windows 7 32 bits the options given when GCC was configured/built: I used the setup-x86.exe the complete command line that triggers the bug; make install the compiler output (error messages, warnings, etc.); bichinda@CSC-023013 ~/ecgpuwave-1.3.3 $ make install gfortran -std=legacy -ffixed-line-length-none -fno-automatic -g -O -Wextra -c -o ecgpuwave.o ecgpuwave.f 6 [main] f951 (3936) C:\cygwin\lib\gcc\i686-pc-cygwin\5.4.0\f951.exe: *** fatal error - cygheap base mismatch detected - 0x6131F408/0x6131F400. This problem is probably due to using incompatible versions of the cygwin DLL. Search for cygwin1.dll using the Windows Start->Find/Search facility and delete all but the most recent version. The most recent version *should* reside in x:\cygwin\bin, where 'x' is the drive on which you have installed the cygwin distribution. Rebooting is also suggested if you are unable to find another cygwin DLL. gfortran: internal compiler error: Segmentation fault (program f951) Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. make: *** [Makefile:88: ecgpuwave.o] Error 4 the preprocessed file: I attach the complete ecgpuwave-1,3,3 archive; just unzip and in run 'make install' in the ecgpuwave-1.3.3 filder