Fix compile error on GCC 5.4.0 (Ubuntu 16.04.1 LTS) #2
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…ile error because warnings are treated as errors in the default Makefile. Otherwise, need -Wno-unused-result to compile on gcc 5.4.0
lammertb
approved these changes
Nov 10, 2017
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This PR fixes compilation with GCC 5.4.0, which ships with Ubuntu 16.04.1 LTS. The compiler warns about fgets() not returning a value, and since warnings are treated as errors, the compilation fails.
cc -c -Wall -Wextra -Wstrict-prototypes -Wshadow -Wpointer-arith -Wcast-qual -Wcast-align -Wwrite-strings -Wredundant-decls -Wnested-externs -Werror -O3 -funsigned-char -Iinclude/ -oexamples/obj/tstcrc.o examples/tstcrc.c
examples/tstcrc.c: In function ‘main’:
examples/tstcrc.c:102:3: error: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Werror=unused-result]
fgets( input_string, MAX_STRING_SIZE-1, stdin );
^