--- compall.orig	2018-09-30 20:45:26.000000000 -0700
+++ compall	2018-11-03 10:10:24.000000000 -0700
@@ -46,7 +46,7 @@
 #  1. we must select the name of the C compiler, often it is simply cc.
 #  2. we must select the #define in zunix.c, and maybe other options.
 #
-set CCOMP=cc
+set CCOMP=__MACPORTS_CC__
 if (($TARGET == axp64) && (`uname` == Linux))     set CCOMP='ccc'
 if  ($TARGET == cray-xd1)                  set CCOMP='pgcc -fastsse -tp amd64'
 if  ($TARGET == fuji-pp32)                        set CCOMP='fcc'
@@ -109,8 +109,8 @@
    if ($GMS_PHI == knl && $CCOMP == icc )  set extraflags='-DLINUX64 -xMIC-AVX512'
    if ($GMS_PHI == knc && $CCOMP == icc )  set extraflags='-DLINUX64 -mmic'
 endif
-if ($TARGET == mac32)        set extraflags='-DLINUX32'
-if ($TARGET == mac64)    set extraflags='-DLINUX64 -m64 -I/usr/include/malloc'
+if ($TARGET == mac32)        set extraflags='-DLINUX32 -m32'
+if ($TARGET == mac64)    set extraflags='-DLINUX64 -m64 -I__MACPORTS_SDK__/usr/include/malloc'
 if ($TARGET == necsx)        set extraflags='-DNECSX -size_t64'
 if ($TARGET == sgi32)        set extraflags='-DSGI32 -n32'
 if ($TARGET == sgi64)        set extraflags='-DSGI64 -64'