some small corrections

aclocal.m4

@@ -296,7 +296,7 @@ AC_DEFUN([FPTOOLS_SET_HASKELL_PLATFORM_VARS],
 
 # GET_ARM_ISA
 # ----------------------------------
-# Get info about the ISA on the Arm arch
+# Get info about the ISA on the ARM arch
 AC_DEFUN([GET_ARM_ISA],
 [
     AC_COMPILE_IFELSE([
@@ -486,7 +486,7 @@ AC_DEFUN([FP_VISIBILITY_HIDDEN],
 
 # FPTOOLS_FLOAT_WORD_ORDER_BIGENDIAN
 # ----------------------------------
-# Little endian Arm on Linux with some ABIs has big endian word order
+# Little endian ARM on Linux with some ABIs has big endian word order
 # in doubles. Define FLOAT_WORDS_BIGENDIAN if this is the case.
 AC_DEFUN([FPTOOLS_FLOAT_WORD_ORDER_BIGENDIAN],
   [AC_CACHE_CHECK([whether float word order is big endian], [fptools_cv_float_word_order_bigendian],

configure.ac

@@ -483,7 +483,7 @@ AC_PATH_PROG(PythonCmd,python)
 
 dnl ** look for GCC and find out which version
 dnl     Figure out which C compiler to use.  Gcc is preferred.
-dnl     If gcc, make sure it's at least 2.1
+dnl     If gcc, make sure it's at least 3.0
 dnl
 FP_GCC_VERSION