diff --git a/lang/cem/libcc.ansi/build.lua b/lang/cem/libcc.ansi/build.lua
index e1845eb69..47d9bc4b3 100644
--- a/lang/cem/libcc.ansi/build.lua
+++ b/lang/cem/libcc.ansi/build.lua
@@ -38,11 +38,11 @@ for _, plat in ipairs(vars.plats) do
 			"./pure/locale/*.c",
 			"./pure/setjmp/*.c",
 			"./pure/setjmp/*.e",
+			"./pure/math/*.c", -- hypot.c
+			"./pure/math/*.e",
 			"./ctype/*.c",
 			"./errno/*.c",
 			"./malloc/*.c",
-			"./math/*.c", -- hypot.c
-			"./math/*.e",
 			"./misc/environ.c", -- don't build everything here as it's all obsolete
 			"./signal/*.c",
 			"./assert/*.c",
@@ -56,7 +56,7 @@ for _, plat in ipairs(vars.plats) do
 			"lang/cem/libcc.ansi/headers+pkg",
 			"plat/"..plat.."/include+pkg",
 			"./malloc/malloc.h",
-			"./math/localmath.h",
+			"./pure/math/localmath.h",
 			"./stdio/loc_incl.h",
 			"./stdlib/ext_fmt.h",
 			"./time/loc_time.h",
diff --git a/lang/cem/libcc.ansi/math/LIST b/lang/cem/libcc.ansi/math/LIST
deleted file mode 100644
index 09a0b3c06..000000000
--- a/lang/cem/libcc.ansi/math/LIST
+++ /dev/null
@@ -1,22 +0,0 @@
-localmath.h
-asin.c
-atan2.c
-atan.c
-ceil.c
-fabs.c
-pow.c
-log10.c
-log.c
-sin.c
-sinh.c
-sqrt.c
-tan.c
-tanh.c
-exp.c
-ldexp.c
-fmod.c
-floor.c
-hugeval.c
-frexp.e
-modf.e
-isnan.c
diff --git a/lang/cem/libcc.ansi/math/Makefile b/lang/cem/libcc.ansi/math/Makefile
deleted file mode 100644
index 1081596a0..000000000
--- a/lang/cem/libcc.ansi/math/Makefile
+++ /dev/null
@@ -1,4 +0,0 @@
-clean:
-	rm -f asin.o atan2.o atan.o ceil.o fabs.o pow.o log10.o \
-		log.o sin.o sinh.o sqrt.o tan.o tanh.o exp.o ldexp.o \
-		fmod.o floor.o hugeval.o frexp.o modf.o isnan.o OLIST
diff --git a/lang/cem/libcc.ansi/math/asin.c b/lang/cem/libcc.ansi/pure/math/asin.c
similarity index 100%
rename from lang/cem/libcc.ansi/math/asin.c
rename to lang/cem/libcc.ansi/pure/math/asin.c
diff --git a/lang/cem/libcc.ansi/math/atan.c b/lang/cem/libcc.ansi/pure/math/atan.c
similarity index 100%
rename from lang/cem/libcc.ansi/math/atan.c
rename to lang/cem/libcc.ansi/pure/math/atan.c
diff --git a/lang/cem/libcc.ansi/math/atan2.c b/lang/cem/libcc.ansi/pure/math/atan2.c
similarity index 100%
rename from lang/cem/libcc.ansi/math/atan2.c
rename to lang/cem/libcc.ansi/pure/math/atan2.c
diff --git a/lang/cem/libcc.ansi/math/ceil.c b/lang/cem/libcc.ansi/pure/math/ceil.c
similarity index 100%
rename from lang/cem/libcc.ansi/math/ceil.c
rename to lang/cem/libcc.ansi/pure/math/ceil.c
diff --git a/lang/cem/libcc.ansi/math/exp.c b/lang/cem/libcc.ansi/pure/math/exp.c
similarity index 100%
rename from lang/cem/libcc.ansi/math/exp.c
rename to lang/cem/libcc.ansi/pure/math/exp.c
diff --git a/lang/cem/libcc.ansi/math/fabs.c b/lang/cem/libcc.ansi/pure/math/fabs.c
similarity index 100%
rename from lang/cem/libcc.ansi/math/fabs.c
rename to lang/cem/libcc.ansi/pure/math/fabs.c
diff --git a/lang/cem/libcc.ansi/math/floor.c b/lang/cem/libcc.ansi/pure/math/floor.c
similarity index 100%
rename from lang/cem/libcc.ansi/math/floor.c
rename to lang/cem/libcc.ansi/pure/math/floor.c
diff --git a/lang/cem/libcc.ansi/math/fmod.c b/lang/cem/libcc.ansi/pure/math/fmod.c
similarity index 100%
rename from lang/cem/libcc.ansi/math/fmod.c
rename to lang/cem/libcc.ansi/pure/math/fmod.c
diff --git a/lang/cem/libcc.ansi/math/frexp.e b/lang/cem/libcc.ansi/pure/math/frexp.e
similarity index 100%
rename from lang/cem/libcc.ansi/math/frexp.e
rename to lang/cem/libcc.ansi/pure/math/frexp.e
diff --git a/lang/cem/libcc.ansi/math/hugeval.c b/lang/cem/libcc.ansi/pure/math/hugeval.c
similarity index 100%
rename from lang/cem/libcc.ansi/math/hugeval.c
rename to lang/cem/libcc.ansi/pure/math/hugeval.c
diff --git a/lang/cem/libcc.ansi/math/hypot.c b/lang/cem/libcc.ansi/pure/math/hypot.c
similarity index 100%
rename from lang/cem/libcc.ansi/math/hypot.c
rename to lang/cem/libcc.ansi/pure/math/hypot.c
diff --git a/lang/cem/libcc.ansi/math/isnan.c b/lang/cem/libcc.ansi/pure/math/isnan.c
similarity index 100%
rename from lang/cem/libcc.ansi/math/isnan.c
rename to lang/cem/libcc.ansi/pure/math/isnan.c
diff --git a/lang/cem/libcc.ansi/math/ldexp.c b/lang/cem/libcc.ansi/pure/math/ldexp.c
similarity index 100%
rename from lang/cem/libcc.ansi/math/ldexp.c
rename to lang/cem/libcc.ansi/pure/math/ldexp.c
diff --git a/lang/cem/libcc.ansi/math/localmath.h b/lang/cem/libcc.ansi/pure/math/localmath.h
similarity index 100%
rename from lang/cem/libcc.ansi/math/localmath.h
rename to lang/cem/libcc.ansi/pure/math/localmath.h
diff --git a/lang/cem/libcc.ansi/math/log.c b/lang/cem/libcc.ansi/pure/math/log.c
similarity index 100%
rename from lang/cem/libcc.ansi/math/log.c
rename to lang/cem/libcc.ansi/pure/math/log.c
diff --git a/lang/cem/libcc.ansi/math/log10.c b/lang/cem/libcc.ansi/pure/math/log10.c
similarity index 100%
rename from lang/cem/libcc.ansi/math/log10.c
rename to lang/cem/libcc.ansi/pure/math/log10.c
diff --git a/lang/cem/libcc.ansi/math/modf.e b/lang/cem/libcc.ansi/pure/math/modf.e
similarity index 100%
rename from lang/cem/libcc.ansi/math/modf.e
rename to lang/cem/libcc.ansi/pure/math/modf.e
diff --git a/lang/cem/libcc.ansi/math/pow.c b/lang/cem/libcc.ansi/pure/math/pow.c
similarity index 100%
rename from lang/cem/libcc.ansi/math/pow.c
rename to lang/cem/libcc.ansi/pure/math/pow.c
diff --git a/lang/cem/libcc.ansi/math/sin.c b/lang/cem/libcc.ansi/pure/math/sin.c
similarity index 100%
rename from lang/cem/libcc.ansi/math/sin.c
rename to lang/cem/libcc.ansi/pure/math/sin.c
diff --git a/lang/cem/libcc.ansi/math/sinh.c b/lang/cem/libcc.ansi/pure/math/sinh.c
similarity index 100%
rename from lang/cem/libcc.ansi/math/sinh.c
rename to lang/cem/libcc.ansi/pure/math/sinh.c
diff --git a/lang/cem/libcc.ansi/math/sqrt.c b/lang/cem/libcc.ansi/pure/math/sqrt.c
similarity index 100%
rename from lang/cem/libcc.ansi/math/sqrt.c
rename to lang/cem/libcc.ansi/pure/math/sqrt.c
diff --git a/lang/cem/libcc.ansi/math/tan.c b/lang/cem/libcc.ansi/pure/math/tan.c
similarity index 100%
rename from lang/cem/libcc.ansi/math/tan.c
rename to lang/cem/libcc.ansi/pure/math/tan.c
diff --git a/lang/cem/libcc.ansi/math/tanh.c b/lang/cem/libcc.ansi/pure/math/tanh.c
similarity index 100%
rename from lang/cem/libcc.ansi/math/tanh.c
rename to lang/cem/libcc.ansi/pure/math/tanh.c