diff --git a/celt/celt.h b/celt/celt.h
index a423b95046a6f7ea98928b309aee3f24bce2a006..d1f7eb690db3f641047b31bac7c41328cfba3058 100644
--- a/celt/celt.h
+++ b/celt/celt.h
@@ -209,7 +209,7 @@ void comb_filter_const_c(opus_val32 *y, opus_val32 *x, int T, int N,
 #endif
 
 #ifndef OVERRIDE_COMB_FILTER_CONST
-# define comb_filter_const(y, x, T, N, g10, g11, g12, arch)		\
+# define comb_filter_const(y, x, T, N, g10, g11, g12, arch) \
     ((void)(arch),comb_filter_const_c(y, x, T, N, g10, g11, g12))
 #endif
 
diff --git a/celt/x86/pitch_sse.h b/celt/x86/pitch_sse.h
index d4cbeb8b9cd321b2b332768be4767d36b8d54c74..e5f87ab51af6e8023514b10cc43367a9e3e20391 100644
--- a/celt/x86/pitch_sse.h
+++ b/celt/x86/pitch_sse.h
@@ -102,21 +102,21 @@ opus_val32 celt_inner_prod_sse(
 #if defined(OPUS_X86_PRESUME_SSE4_1) && defined(FIXED_POINT)
 #define OVERRIDE_CELT_INNER_PROD
 #define celt_inner_prod(x, y, N, arch) \
-	((void)arch, celt_inner_prod_sse4_1(x, y, N))
+    ((void)arch, celt_inner_prod_sse4_1(x, y, N))
 
 #elif defined(OPUS_X86_PRESUME_SSE2) && defined(FIXED_POINT) && !defined(OPUS_X86_MAY_HAVE_SSE4_1)
 #define OVERRIDE_CELT_INNER_PROD
 #define celt_inner_prod(x, y, N, arch) \
-	((void)arch, celt_inner_prod_sse2(x, y, N))
+    ((void)arch, celt_inner_prod_sse2(x, y, N))
 
 #elif defined(OPUS_X86_PRESUME_SSE) && !defined(FIXED_POINT)
 #define OVERRIDE_CELT_INNER_PROD
 #define celt_inner_prod(x, y, N, arch) \
-	((void)arch, celt_inner_prod_sse(x, y, N))
+    ((void)arch, celt_inner_prod_sse(x, y, N))
 
 
 #elif ((defined(OPUS_X86_MAY_HAVE_SSE4_1) || defined(OPUS_X86_MAY_HAVE_SSE2)) && defined(FIXED_POINT)) || \
-	(defined(OPUS_X86_MAY_HAVE_SSE) && !defined(FIXED_POINT))
+    (defined(OPUS_X86_MAY_HAVE_SSE) && !defined(FIXED_POINT))
 
 extern opus_val32 (*const CELT_INNER_PROD_IMPL[OPUS_ARCHMASK + 1])(
                     const opus_val16 *x,
@@ -138,19 +138,19 @@ extern opus_val32 (*const CELT_INNER_PROD_IMPL[OPUS_ARCHMASK + 1])(
 #undef comb_filter_const
 
 void dual_inner_prod_sse(const opus_val16 *x,
-	const opus_val16 *y01,
-	const opus_val16 *y02,
-	int               N,
-	opus_val32       *xy1,
-	opus_val32       *xy2);
+    const opus_val16 *y01,
+    const opus_val16 *y02,
+    int               N,
+    opus_val32       *xy1,
+    opus_val32       *xy2);
 
 void comb_filter_const_sse(opus_val32 *y,
-	opus_val32 *x,
-	int         T,
-	int         N,
-	opus_val16  g10,
-	opus_val16  g11,
-	opus_val16  g12);
+    opus_val32 *x,
+    int         T,
+    int         N,
+    opus_val16  g10,
+    opus_val16  g11,
+    opus_val16  g12);
 
 
 #if defined(OPUS_X86_PRESUME_SSE)
@@ -169,7 +169,7 @@ extern void (*const DUAL_INNER_PROD_IMPL[OPUS_ARCHMASK + 1])(
               opus_val32       *xy1,
               opus_val32       *xy2);
 
-#define dual_inner_prod(x, y01, y02, N, xy1, xy2, arch)			\
+#define dual_inner_prod(x, y01, y02, N, xy1, xy2, arch) \
     ((*DUAL_INNER_PROD_IMPL[(arch) & OPUS_ARCHMASK])(x, y01, y02, N, xy1, xy2))
 
 extern void (*const COMB_FILTER_CONST_IMPL[OPUS_ARCHMASK + 1])(
@@ -181,7 +181,7 @@ extern void (*const COMB_FILTER_CONST_IMPL[OPUS_ARCHMASK + 1])(
               opus_val16  g11,
               opus_val16  g12);
 
-#define comb_filter_const(y, x, T, N, g10, g11, g12, arch)				\
+#define comb_filter_const(y, x, T, N, g10, g11, g12, arch) \
     ((*COMB_FILTER_CONST_IMPL[(arch) & OPUS_ARCHMASK])(y, x, T, N, g10, g11, g12))
 
 #define NON_STATIC_COMB_FILTER_CONST_C
diff --git a/celt/x86/x86_celt_map.c b/celt/x86/x86_celt_map.c
index 8e5e449275c40aad532dc41703786c4bafd44050..47ba41b9eefd5e3dcf4e4f8f5908b1cb0c5eae5a 100644
--- a/celt/x86/x86_celt_map.c
+++ b/celt/x86/x86_celt_map.c
@@ -72,7 +72,7 @@ void (*const XCORR_KERNEL_IMPL[OPUS_ARCHMASK + 1])(
 #endif
 
 #if (defined(OPUS_X86_MAY_HAVE_SSE4_1) && !defined(OPUS_X86_PRESUME_SSE4_1)) ||  \
-	(!defined(OPUS_X86_MAY_HAVE_SSE_4_1) && defined(OPUS_X86_MAY_HAVE_SSE2) && !defined(OPUS_X86_PRESUME_SSE2))
+ (!defined(OPUS_X86_MAY_HAVE_SSE_4_1) && defined(OPUS_X86_MAY_HAVE_SSE2) && !defined(OPUS_X86_PRESUME_SSE2))
 
 opus_val32 (*const CELT_INNER_PROD_IMPL[OPUS_ARCHMASK + 1])(
          const opus_val16 *x,
diff --git a/celt/x86/x86cpu.c b/celt/x86/x86cpu.c
index 555a576b8a20306b3190a5f3bc6e5b3be4115fd1..080eb25e413d9e6587a419933d85ea9a6243b46e 100644
--- a/celt/x86/x86cpu.c
+++ b/celt/x86/x86cpu.c
@@ -46,7 +46,7 @@
 #include <intrin.h>
 static _inline void cpuid(unsigned int CPUInfo[4], unsigned int InfoType)
 {
-	__cpuid((int*)CPUInfo, InfoType);
+    __cpuid((int*)CPUInfo, InfoType);
 }
 
 #else
diff --git a/configure.ac b/configure.ac
index 8071af607656a463f92bb105807c5e7e8c7aeecb..9b3355c27ffd235f74c392fa41b75ec10e9ec459 100644
--- a/configure.ac
+++ b/configure.ac
@@ -366,9 +366,9 @@ m4_define([DEFAULT_ARM_NEON_INTR_CFLAGS], [-mfpu=neon])
 m4_define([DEFAULT_ARM_NEON_SOFTFP_INTR_CFLAGS], [-mfpu=neon -mfloat-abi=softfp])
 
 AS_CASE([$host],
-	[arm*hf*], [AS_VAR_SET([RESOLVED_DEFAULT_ARM_NEON_INTR_CFLAGS], "DEFAULT_ARM_NEON_INTR_CFLAGS")],
-	[arm*eabi*], [AS_VAR_SET([RESOLVED_DEFAULT_ARM_NEON_INTR_CFLAGS], "DEFAULT_ARM_NEON_SOFTFP_INTR_CFLAGS")],
-	[AS_VAR_SET([RESOLVED_DEFAULT_ARM_NEON_INTR_CFLAGS], "DEFAULT_ARM_NEON_INTR_CFLAGS")])
+        [arm*hf*], [AS_VAR_SET([RESOLVED_DEFAULT_ARM_NEON_INTR_CFLAGS], "DEFAULT_ARM_NEON_INTR_CFLAGS")],
+        [arm*eabi*], [AS_VAR_SET([RESOLVED_DEFAULT_ARM_NEON_INTR_CFLAGS], "DEFAULT_ARM_NEON_SOFTFP_INTR_CFLAGS")],
+        [AS_VAR_SET([RESOLVED_DEFAULT_ARM_NEON_INTR_CFLAGS], "DEFAULT_ARM_NEON_INTR_CFLAGS")])
 
 AC_ARG_VAR([X86_SSE_CFLAGS], [C compiler flags to compile SSE intrinsics @<:@default=]DEFAULT_X86_SSE_CFLAGS[@:>@])
 AC_ARG_VAR([X86_SSE2_CFLAGS], [C compiler flags to compile SSE2 intrinsics @<:@default=]DEFAULT_X86_SSE2_CFLAGS[@:>@])
@@ -702,7 +702,7 @@ AS_IF([test x"$enable_intrinsics" = x"yes"],[
             ]])],
             [get_cpuid_by_asm="yes"
              AC_MSG_RESULT([Inline Assembly])
-			 AC_DEFINE([CPU_INFO_BY_ASM], [1], [Get CPU Info by asm method])],
+                 AC_DEFINE([CPU_INFO_BY_ASM], [1], [Get CPU Info by asm method])],
              [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
                  #include <cpuid.h>
             ]],[[
@@ -714,7 +714,7 @@ AS_IF([test x"$enable_intrinsics" = x"yes"],[
                  __get_cpuid(InfoType, &CPUInfo0, &CPUInfo1, &CPUInfo2, &CPUInfo3);
             ]])],
             [AC_MSG_RESULT([C method])
-			 AC_DEFINE([CPU_INFO_BY_C], [1], [Get CPU Info by c method])],
+                 AC_DEFINE([CPU_INFO_BY_C], [1], [Get CPU Info by c method])],
             [AC_MSG_ERROR([no supported Get CPU Info method, please disable intrinsics])])])])
    ],
    [