/usr/bin/c99-gcc is in gcc 4:4.9.2-2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | #! /bin/sh
# Call the appropriate C compiler with options to accept ANSI/ISO C
# The following options are the same (as of gcc-3.3):
# -std=c99
# -std=c9x
# -std=iso9899:1999
# -std=iso9899:199x
extra_flag=-std=c99
for i; do
case "$i" in
-std=c9[9x]|-std=iso9899:199[9x])
extra_flag=
;;
-std=*|-ansi)
echo >&2 "`basename $0` called with non ISO C99 option $i"
exit 1
;;
esac
done
exec gcc $extra_flag ${1+"$@"}
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