Simplify Makefile, removing some old options

The variable + CFLAGS pattern

    FOO = x
    CFLAGS := $(CFLAGS) -DFOO=$(FOO)

is replaced by updating CFLAGS directly:

    CFLAGS += -DFOO=x

This keeps the Makefile a bit shorter and more manageable.

Some other options have been removed because they aren't needed any more,
like regex configurations for very old systems and IEEE_MATH.

CC is no longer set by the Makefile. It has a default value set by make or
the system and can be adjusted in the Makefile or by passing an argument
to make: `make CC=clang`

1 files changed, 0 insertions, 8 deletions

diff --git a/src/lex.c b/src/lex.c
index fc63bd4..ee28b01 100644
--- a/src/lex.c
+++ b/src/lex.c
@@ -1,10 +1,6 @@
 #include <sys/types.h>
 #include <string.h>
 
-#ifdef IEEE_MATH
- #include <ieeefp.h>
-#endif /* IEEE_MATH */
-
 #include <stdlib.h>
 #include <stdio.h>
 #include <signal.h>
@@ -32,10 +28,6 @@ void fpe_trap(int signo) {
 #if defined(i386)
     asm("    fnclex");
     asm("    fwait");
-#else
- #ifdef IEEE_MATH
-    (void)fpsetsticky((fp_except)0);    /* Clear exception */
- #endif /* IEEE_MATH */
 #endif
     longjmp(fpe_buf, 1);
 }