| 1 | If your compiler does not recognize ANSI C headers,
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| 2 | compile with KR_headers defined: either add -DKR_headers
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| 3 | to the definition of CFLAGS in the makefile, or insert
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| 4 |
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| 5 | #define KR_headers
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| 6 |
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| 7 | at the top of f2c.h and fmtlib.c .
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| 8 |
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| 9 |
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| 10 | If you have a really ancient K&R C compiler that does not understand
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| 11 | void, add -Dvoid=int to the definition of CFLAGS in the makefile.
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| 12 |
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| 13 | If you use a C++ compiler, first create a local f2c.h by appending
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| 14 | f2ch.add to the usual f2c.h, e.g., by issuing the command
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| 15 | make f2c.h
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| 16 | which assumes f2c.h is installed in /usr/include .
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| 17 |
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| 18 | If your system lacks /usr/include/fcntl.h , then you
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| 19 | should simply create an empty fcntl.h in this directory.
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| 20 | If your compiler then complains about creat and open not
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| 21 | having a prototype, compile with OPEN_DECL defined.
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| 22 | On many systems, open and creat are declared in fcntl.h .
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| 23 |
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| 24 | If your system has /usr/include/fcntl.h, you may need to add
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| 25 | -D_POSIX_SOURCE to the makefile's definition of CFLAGS.
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| 26 |
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| 27 | If your system's sprintf does not work the way ANSI C
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| 28 | specifies -- specifically, if it does not return the
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| 29 | number of characters transmitted -- then insert the line
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| 30 |
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