diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..414487d
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1 @@
+build-*/
diff --git a/Makefile b/Makefile
index 615a453..cecef6d 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,12 @@
+ifndef VERSION
+$(error You must specify a VERSION e.g. VERSION=2.8.1)
+endif
+
 all:
-	docker compose up -d --build
+	mkdir -p build-gcc-$(VERSION)
+	docker compose up --build && docker compose down
 
 clean:
-	rm -rf build/
+	rm -rf build-gcc-*/
 
 .PHONY: all
diff --git a/gcc-2.6.0.Dockerfile b/gcc-2.6.0.Dockerfile
index 1976580..d86daad 100644
--- a/gcc-2.6.0.Dockerfile
+++ b/gcc-2.6.0.Dockerfile
@@ -17,6 +17,7 @@ RUN patch -u -p1 collect2.c -i ../patches/collect2-2.6.0.c.patch
 RUN patch -u -p1 cccp.c -i ../patches/cccp-2.6.0.c.patch
 RUN patch -u -p1 gcc.c -i ../patches/gcc-2.6.0.c.patch
 RUN patch -u -p1 cp/g++.c -i ../patches/g++-2.6.0.c.patch
+RUN patch -u -p1 config/mips/mips.h -i ../patches/mipsel-2.6.patch
 
 RUN ./configure \
     --target=mips-linux-gnu \
@@ -26,7 +27,10 @@ RUN ./configure \
     --host=i386-pc-linux \
     --build=i386-pc-linux
 
-RUN make cpp cc1 xgcc cc1plus g++ CFLAGS="-std=gnu89 -m32 -static -Dbsd4_4 -Dmips -DHAVE_STRERROR" || true
+RUN make cpp cc1 xgcc cc1plus g++ CFLAGS="-std=gnu89 -m32 -static -Dbsd4_4 -Dmips -DHAVE_STRERROR"
+
+COPY tests /work/tests
+RUN ./cc1 -quiet -O2 /work/tests/little_endian.c && grep -E 'lbu\s\$2,0\(\$4\)' /work/tests/little_endian.s
 
 COPY entrypoint.sh /work/
 RUN chmod +x /work/entrypoint.sh
diff --git a/gcc-2.6.3-psx.Dockerfile b/gcc-2.6.3-psx.Dockerfile
index b247e75..7eb0805 100644
--- a/gcc-2.6.3-psx.Dockerfile
+++ b/gcc-2.6.3-psx.Dockerfile
@@ -10,9 +10,11 @@ RUN tar xzf gcc-2.6.3.tar.gz
 WORKDIR /work/gcc-2.6.3
 COPY patches /work/patches
 RUN sed -i -- 's/include <varargs.h>/include <stdarg.h>/g' *.c
+
 RUN patch -u -p1 obstack.h -i ../patches/obstack-2.7.2.h.patch
 RUN patch -u -p1 sdbout.c -i ../patches/sdbout-2.6.3.c.patch
 RUN patch -su -p1 < ../patches/psx.patch
+
 RUN ./configure \
     --target=mips-sony-psx \
     --prefix=/opt/cross \
@@ -23,6 +25,9 @@ RUN ./configure \
 
 RUN make -j cpp cc1 xgcc cc1plus g++ CFLAGS="-std=gnu89 -m32 -static -Dbsd4_4 -Dmips -march=i686" || true
 
+COPY tests /work/tests
+RUN ./cc1 -quiet -O2 /work/tests/little_endian.c && grep -E 'lbu\s\$2,0\(\$4\)' /work/tests/little_endian.s
+
 COPY entrypoint.sh /work/
 RUN chmod +x /work/entrypoint.sh
 CMD [ "/work/entrypoint.sh" ]
diff --git a/gcc-2.6.3.Dockerfile b/gcc-2.6.3.Dockerfile
index 07741ea..17ec882 100644
--- a/gcc-2.6.3.Dockerfile
+++ b/gcc-2.6.3.Dockerfile
@@ -10,8 +10,11 @@ RUN tar xzf gcc-2.6.3.tar.gz
 WORKDIR /work/gcc-2.6.3
 COPY patches /work/patches
 RUN sed -i -- 's/include <varargs.h>/include <stdarg.h>/g' *.c
+
 RUN patch -u -p1 obstack.h -i ../patches/obstack-2.7.2.h.patch
 RUN patch -u -p1 sdbout.c -i ../patches/sdbout-2.6.3.c.patch
+RUN patch -u -p1 config/mips/mips.h -i ../patches/mipsel-2.6.patch
+
 RUN ./configure \
     --target=mips-linux-gnu \
     --prefix=/opt/cross \
@@ -20,7 +23,10 @@ RUN ./configure \
     --host=i386-pc-linux \
     --build=i386-pc-linux
 
-RUN make -j cpp cc1 xgcc cc1plus g++ CFLAGS="-std=gnu89 -m32 -static -Dbsd4_4 -Dmips" || true
+RUN make cpp cc1 xgcc cc1plus g++ CFLAGS="-std=gnu89 -m32 -static -Dbsd4_4 -Dmips" || true
+
+COPY tests /work/tests
+RUN ./cc1 -quiet -O2 /work/tests/little_endian.c && grep -E 'lbu\s\$2,0\(\$4\)' /work/tests/little_endian.s
 
 COPY entrypoint.sh /work/
 RUN chmod +x /work/entrypoint.sh
diff --git a/gcc-2.7.0.Dockerfile b/gcc-2.7.0.Dockerfile
index 1f0b10f..0db6864 100644
--- a/gcc-2.7.0.Dockerfile
+++ b/gcc-2.7.0.Dockerfile
@@ -10,9 +10,12 @@ RUN tar xzf gcc-2.7.0.tar.gz
 WORKDIR /work/gcc-2.7.0
 COPY patches /work/patches
 RUN sed -i -- 's/include <varargs.h>/include <stdarg.h>/g' *.c
+
 RUN patch -u -p1 obstack.h -i ../patches/obstack-2.7.2.h.patch
 RUN patch -u -p1 configure -i ../patches/configure.patch
 RUN patch -u -p1 config.sub -i ../patches/config.sub.patch
+RUN patch -u -p1 config/mips/mips.h -i ../patches/mipsel-2.7.patch
+
 RUN ./configure \
     --target=mips-linux-gnu \
     --prefix=/opt/cross \
@@ -25,7 +28,9 @@ RUN ./configure \
     --build=i386-pc-linux
 
 RUN make -j cpp cc1 xgcc cc1plus g++ CFLAGS="-std=gnu89 -m32 -static"
-RUN test -f cc1
+
+COPY tests /work/tests
+RUN ./cc1 -quiet -O2 /work/tests/little_endian.c && grep -E 'lbu\s\$2,0\(\$4\)' /work/tests/little_endian.s
 
 COPY entrypoint.sh /work/
 RUN chmod +x /work/entrypoint.sh
diff --git a/gcc-2.7.1.Dockerfile b/gcc-2.7.1.Dockerfile
index c6c9a6b..506a896 100644
--- a/gcc-2.7.1.Dockerfile
+++ b/gcc-2.7.1.Dockerfile
@@ -10,9 +10,12 @@ RUN tar xzf gcc-2.7.1.tar.gz
 WORKDIR /work/gcc-2.7.1
 COPY patches /work/patches
 RUN sed -i -- 's/include <varargs.h>/include <stdarg.h>/g' *.c
+
 RUN patch -u -p1 obstack.h -i ../patches/obstack-2.7.2.h.patch
 RUN patch -u -p1 configure -i ../patches/configure.patch
 RUN patch -u -p1 config.sub -i ../patches/config.sub.patch
+RUN patch -u -p1 config/mips/mips.h -i ../patches/mipsel-2.7.patch
+
 RUN ./configure \
     --target=mips-linux-gnu \
     --prefix=/opt/cross \
@@ -24,8 +27,10 @@ RUN ./configure \
     --host=i386-pc-linux \
     --build=i386-pc-linux
 
-RUN make -j cpp cc1 xgcc cc1plus g++ CFLAGS="-std=gnu89 -m32 -static" || true
-RUN test -f cc1
+RUN make -j cpp cc1 xgcc cc1plus g++ CFLAGS="-std=gnu89 -m32 -static"
+
+COPY tests /work/tests
+RUN ./cc1 -quiet -O2 /work/tests/little_endian.c && grep -E 'lbu\s\$2,0\(\$4\)' /work/tests/little_endian.s
 
 COPY entrypoint.sh /work/
 RUN chmod +x /work/entrypoint.sh
diff --git a/gcc-2.7.2.1.Dockerfile b/gcc-2.7.2.1.Dockerfile
index 2dc3bf8..3225a53 100644
--- a/gcc-2.7.2.1.Dockerfile
+++ b/gcc-2.7.2.1.Dockerfile
@@ -1,6 +1,7 @@
 FROM ubuntu:focal
+ENV DEBIAN_FRONTEND=noninteractive
 RUN apt-get update
-RUN apt-get install -y build-essential bison file gperf gcc gcc-multilib git wget
+RUN apt-get install -y build-essential gcc gcc-multilib wget
 
 ENV VERSION=2.7.2.1
 ENV GNUPATH=old-gnu
@@ -23,13 +24,16 @@ RUN ./configure \
 
 COPY patches /work/patches
 RUN sed -i -- 's/include <varargs.h>/include <stdarg.h>/g' *.c
+
 RUN patch -u -p1 obstack.h -i ../patches/obstack-2.7.2.h.patch
 RUN patch -u -p1 configure -i ../patches/configure.patch
 RUN patch -u -p1 config.sub -i ../patches/config.sub.patch
+RUN patch -u -p1 config/mips/mips.h -i ../patches/mipsel-2.7.patch
 
 RUN make -j cpp cc1 xgcc cc1plus g++ CFLAGS="-std=gnu89 -m32 -static"
-RUN test -f cc1
-RUN file cc1
+
+COPY tests /work/tests
+RUN ./cc1 -quiet -O2 /work/tests/little_endian.c && grep -E 'lbu\s\$2,0\(\$4\)' /work/tests/little_endian.s
 
 COPY entrypoint.sh /work/
 RUN chmod +x /work/entrypoint.sh
diff --git a/gcc-2.7.2.2.Dockerfile b/gcc-2.7.2.2.Dockerfile
index 51c1141..9af4869 100644
--- a/gcc-2.7.2.2.Dockerfile
+++ b/gcc-2.7.2.2.Dockerfile
@@ -1,6 +1,7 @@
 FROM ubuntu:focal
+ENV DEBIAN_FRONTEND=noninteractive
 RUN apt-get update
-RUN apt-get install -y build-essential bison file gperf gcc gcc-multilib git wget
+RUN apt-get install -y build-essential gcc gcc-multilib wget
 
 ENV VERSION=2.7.2.2
 ENV GNUPATH=old-gnu
@@ -23,13 +24,16 @@ RUN ./configure \
 
 COPY patches /work/patches
 RUN sed -i -- 's/include <varargs.h>/include <stdarg.h>/g' *.c
+
 RUN patch -u -p1 obstack.h -i ../patches/obstack-2.7.2.h.patch
 RUN patch -u -p1 configure -i ../patches/configure.patch
 RUN patch -u -p1 config.sub -i ../patches/config.sub.patch
+RUN patch -u -p1 config/mips/mips.h -i ../patches/mipsel-2.7.patch
 
 RUN make -j cpp cc1 xgcc cc1plus g++ CFLAGS="-std=gnu89 -m32 -static"
-RUN test -f cc1
-RUN file cc1
+
+COPY tests /work/tests
+RUN ./cc1 -quiet -O2 /work/tests/little_endian.c && grep -E 'lbu\s\$2,0\(\$4\)' /work/tests/little_endian.s
 
 COPY entrypoint.sh /work/
 RUN chmod +x /work/entrypoint.sh
diff --git a/gcc-2.7.2.3.Dockerfile b/gcc-2.7.2.3.Dockerfile
index 45b3e99..25bd63e 100644
--- a/gcc-2.7.2.3.Dockerfile
+++ b/gcc-2.7.2.3.Dockerfile
@@ -1,6 +1,7 @@
 FROM ubuntu:focal
+ENV DEBIAN_FRONTEND=noninteractive
 RUN apt-get update
-RUN apt-get install -y build-essential bison file gperf gcc gcc-multilib git wget
+RUN apt-get install -y build-essential gcc gcc-multilib wget
 
 ENV VERSION=2.7.2.3
 ENV GNUPATH=gnu
@@ -23,11 +24,14 @@ RUN ./configure \
 
 COPY patches /work/patches
 RUN sed -i -- 's/include <varargs.h>/include <stdarg.h>/g' *.c
+
 RUN patch -u -p1 obstack.h -i ../patches/obstack-2.7.2.h.patch
+RUN patch -u -p1 config/mips/mips.h -i ../patches/mipsel-2.7.patch
 
 RUN make -j cpp cc1 xgcc cc1plus g++ CFLAGS="-std=gnu89 -m32 -static"
-RUN test -f cc1
-RUN file cc1
+
+COPY tests /work/tests
+RUN ./cc1 -quiet -O2 /work/tests/little_endian.c && grep -E 'lbu\s\$2,0\(\$4\)' /work/tests/little_endian.s
 
 COPY entrypoint.sh /work/
 RUN chmod +x /work/entrypoint.sh
diff --git a/gcc-2.7.2.Dockerfile b/gcc-2.7.2.Dockerfile
index a8cb3ff..c81e858 100644
--- a/gcc-2.7.2.Dockerfile
+++ b/gcc-2.7.2.Dockerfile
@@ -1,6 +1,7 @@
 FROM ubuntu:focal
+ENV DEBIAN_FRONTEND=noninteractive
 RUN apt-get update
-RUN apt-get install -y build-essential bison file gperf gcc gcc-multilib git wget
+RUN apt-get install -y build-essential gcc gcc-multilib wget
 
 ENV VERSION=2.7.2
 ENV GNUPATH=old-gnu
@@ -23,13 +24,16 @@ RUN ./configure \
 
 COPY patches /work/patches
 RUN sed -i -- 's/include <varargs.h>/include <stdarg.h>/g' *.c
+
 RUN patch -u -p1 obstack.h -i ../patches/obstack-2.7.2.h.patch
 RUN patch -u -p1 configure -i ../patches/configure.patch
 RUN patch -u -p1 config.sub -i ../patches/config.sub.patch
+RUN patch -u -p1 config/mips/mips.h -i ../patches/mipsel-2.7.patch
 
 RUN make -j cpp cc1 xgcc cc1plus g++ CFLAGS="-std=gnu89 -m32 -static"
-RUN test -f cc1
-RUN file cc1
+
+COPY tests /work/tests
+RUN ./cc1 -quiet -O2 /work/tests/little_endian.c && grep -E 'lbu\s\$2,0\(\$4\)' /work/tests/little_endian.s
 
 COPY entrypoint.sh /work/
 RUN chmod +x /work/entrypoint.sh
diff --git a/gcc-2.8.0.Dockerfile b/gcc-2.8.0.Dockerfile
index 313df82..8025dcb 100644
--- a/gcc-2.8.0.Dockerfile
+++ b/gcc-2.8.0.Dockerfile
@@ -1,6 +1,6 @@
 FROM ubuntu:focal
 RUN apt-get update
-RUN apt-get install -y build-essential bison file gperf gcc gcc-multilib git wget
+RUN apt-get install -y build-essential bison gperf gcc gcc-multilib git wget
 
 ENV VERSION=2.8.0
 ENV GNUPATH=gnu
@@ -25,9 +25,12 @@ COPY patches /work/patches
 RUN sed -i -- 's/include <varargs.h>/include <stdarg.h>/g' *.c
 RUN patch -u -p1 obstack.h -i ../patches/obstack-2.8.0.h.patch
 
+RUN patch -u -p1 config/mips/mips.h -i ../patches/mipsel-2.7.patch
+
 RUN make cpp cc1 xgcc cc1plus g++ CFLAGS="-std=gnu89 -m32 -static"
-RUN test -f cc1
-RUN file cc1
+
+COPY tests /work/tests
+RUN ./cc1 -quiet -O2 /work/tests/little_endian.c && grep -E 'lbu\s\$2,0\(\$4\)' /work/tests/little_endian.s
 
 COPY entrypoint.sh /work/
 RUN chmod +x /work/entrypoint.sh
diff --git a/gcc-2.8.1.Dockerfile b/gcc-2.8.1.Dockerfile
index 8a838a2..76c384f 100644
--- a/gcc-2.8.1.Dockerfile
+++ b/gcc-2.8.1.Dockerfile
@@ -1,6 +1,6 @@
 FROM ubuntu:focal
 RUN apt-get update
-RUN apt-get install -y build-essential bison file gperf gcc gcc-multilib git wget
+RUN apt-get install -y build-essential bison gperf gcc gcc-multilib git wget
 
 ENV VERSION=2.8.1
 ENV GNUPATH=gnu
@@ -25,9 +25,12 @@ COPY patches /work/patches
 RUN sed -i -- 's/include <varargs.h>/include <stdarg.h>/g' *.c
 RUN patch -u -p1 obstack.h -i ../patches/obstack-2.8.1.h.patch
 
+RUN patch -u -p1 config/mips/mips.h -i ../patches/mipsel-2.7.patch
+
 RUN make -j cpp cc1 xgcc cc1plus g++ CFLAGS="-std=gnu89 -m32 -static"
-RUN test -f cc1
-RUN file cc1
+
+COPY tests /work/tests
+RUN ./cc1 -quiet -O2 /work/tests/little_endian.c && grep -E 'lbu\s\$2,0\(\$4\)' /work/tests/little_endian.s
 
 COPY entrypoint.sh /work/
 RUN chmod +x /work/entrypoint.sh
diff --git a/gcc-2.91.66.Dockerfile b/gcc-2.91.66.Dockerfile
index b972fd3..0308b66 100644
--- a/gcc-2.91.66.Dockerfile
+++ b/gcc-2.91.66.Dockerfile
@@ -1,6 +1,6 @@
 FROM ubuntu:focal as build
 RUN apt-get update
-RUN apt-get install -y build-essential bison file gperf gcc gcc-multilib git wget
+RUN apt-get install -y build-essential bison gperf gcc gcc-multilib git wget
 
 ARG VERSION=2.91.66
 ENV VERSION=${VERSION}
@@ -29,12 +29,13 @@ COPY patches /work/patches
 
 RUN sed -i -- 's/include <varargs.h>/include <stdarg.h>/g' **/*.c
 RUN patch -u -p1 gcc/obstack.h -i ../patches/obstack-${VERSION}.h.patch
+RUN patch -u -p1 gcc/config/mips/mips.h -i ../patches/mipsel-2.7.patch
 
 RUN make -C libiberty/ CFLAGS="-std=gnu89 -m32 -static"
 RUN make -C gcc/ -j cpp cc1 xgcc cc1plus g++ CFLAGS="-std=gnu89 -m32 -static"
 
-RUN test -f gcc/cc1
-RUN file gcc/cc1
+COPY tests /work/tests
+RUN ./gcc/cc1 -quiet -O2 /work/tests/little_endian.c && grep -E 'lbu\s\$2,0\(\$4\)' /work/tests/little_endian.s
 
 ### STAGE 2
 
diff --git a/gcc-2.95.2.Dockerfile b/gcc-2.95.2.Dockerfile
index b3e7aad..158fed7 100644
--- a/gcc-2.95.2.Dockerfile
+++ b/gcc-2.95.2.Dockerfile
@@ -1,6 +1,6 @@
 FROM ubuntu:focal as build
 RUN apt-get update
-RUN apt-get install -y build-essential bison file gperf gcc gcc-multilib git wget
+RUN apt-get install -y build-essential bison gperf gcc gcc-multilib git wget
 
 ARG VERSION=2.95.2
 ENV VERSION=${VERSION}
@@ -29,12 +29,13 @@ COPY patches /work/patches
 
 RUN sed -i -- 's/include <varargs.h>/include <stdarg.h>/g' **/*.c
 RUN patch -u -p1 include/obstack.h -i ../patches/obstack-${VERSION}.h.patch
+RUN patch -u -p1 gcc/config/mips/mips.h -i ../patches/mipsel-2.7.patch
 
 RUN make -C libiberty/ CFLAGS="-std=gnu89 -m32 -static"
 RUN make -C gcc/ -j cpp cc1 xgcc cc1plus g++ CFLAGS="-std=gnu89 -m32 -static"
 
-RUN test -f gcc/cc1
-RUN file gcc/cc1
+COPY tests /work/tests
+RUN ./gcc/cc1 -mel -quiet -O2 /work/tests/little_endian.c && grep -E 'lbu\s\$2,0\(\$4\)' /work/tests/little_endian.s
 
 ### STAGE 2
 
diff --git a/patches/mipsel-2.6.patch b/patches/mipsel-2.6.patch
new file mode 100644
index 0000000..a292b46
--- /dev/null
+++ b/patches/mipsel-2.6.patch
@@ -0,0 +1,25 @@
+--- mips.h      1994-07-11 19:22:16.000000000 +0100
++++ mips-patched.h      2023-10-04 08:36:53.516458765 +0100
+@@ -544,8 +544,8 @@
+ /* Names to predefine in the preprocessor for this target machine.  */
+
+ #ifndef CPP_PREDEFINES
+-#define CPP_PREDEFINES "-Dmips -Dunix -Dhost_mips -DMIPSEB -DR3000 -DSYSTYPE_BSD43 \
+--D_mips -D_unix -D_host_mips -D_MIPSEB -D_R3000 -D_SYSTYPE_BSD43 \
++#define CPP_PREDEFINES "-Dmips -Dunix -Dhost_mips -DMIPSEL -DR3000 -DSYSTYPE_BSD43 \
++-D_mips -D_unix -D_host_mips -D_MIPSEL -D_R3000 -D_SYSTYPE_BSD43 \
+ -Asystem(unix) -Asystem(bsd) -Acpu(mips) -Amachine(mips)"
+ #endif
+
+@@ -901,6 +901,11 @@
+ */
+ #define BITS_BIG_ENDIAN 0
+
++/* Force little-endian */
++#define MIPSEL
++#define BYTES_BIG_ENDIAN 0
++#define WORDS_BIG_ENDIAN 0
++
+ /* Define this if most significant byte of a word is the lowest numbered. */
+ #ifndef BYTES_BIG_ENDIAN
+ #ifndef DECSTATION
diff --git a/patches/mipsel-2.7.patch b/patches/mipsel-2.7.patch
new file mode 100644
index 0000000..46e1108
--- /dev/null
+++ b/patches/mipsel-2.7.patch
@@ -0,0 +1,12 @@
+--- mips.h	1995-06-15 19:32:41.000000000 +0000
++++ mips-patched.h	2023-10-04 09:29:22.998515730 +0000
+@@ -406,6 +406,9 @@
+ 			   | TARGET_ENDIAN_DEFAULT)}			\
+ }
+
++/* Default little-endian */
++#define TARGET_ENDIAN_DEFAULT -MASK_BIG_ENDIAN
++
+ /* Default target_flags if no switches are specified  */
+
+ #ifndef TARGET_DEFAULT
diff --git a/patches/sdbout-2.6.3.c.patch b/patches/sdbout-2.6.3.c.patch
index c179292..99d92c2 100644
--- a/patches/sdbout-2.6.3.c.patch
+++ b/patches/sdbout-2.6.3.c.patch
@@ -1,6 +1,6 @@
 --- gcc-2.6.3/sdbout.c	1994-09-30 22:23:57.000000000 +0100
 +++ gcc-2.7.1/sdbout.c	1995-06-15 13:07:11.000000000 +0100
-@@ -53,2 +54,2 @@
+@@ -56,2 +57,2 @@
 -#if defined(USG) && !defined(MIPS) && !defined (hpux) && !defined(WINNT)
 +#if defined(USG) && !defined(MIPS) && !defined (hpux) && !defined(_WIN32) && !defined(__linux__)
  #include <syms.h>
diff --git a/tests/little_endian.c b/tests/little_endian.c
new file mode 100644
index 0000000..4a741f6
--- /dev/null
+++ b/tests/little_endian.c
@@ -0,0 +1,7 @@
+typedef struct {
+    unsigned int field;
+} Foo;
+
+unsigned char bar(Foo* foo) {
+    return foo->field;
+}