diff --git a/linux-user/aarch64/target_syscall.h b/linux-user/aarch64/target_syscall.h
index f45801804897ed7be54169a24917eaf5b7879ae9..1b62953eeb2b464091afe127d915638b427533cd 100644
--- a/linux-user/aarch64/target_syscall.h
+++ b/linux-user/aarch64/target_syscall.h
@@ -1,5 +1,5 @@
-#ifndef TARGET_SYSCALL_H
-#define TARGET_SYSCALL_H
+#ifndef AARCH64_TARGET_SYSCALL_H
+#define AARCH64_TARGET_SYSCALL_H
 
 struct target_pt_regs {
     uint64_t        regs[31];
@@ -15,4 +15,4 @@ struct target_pt_regs {
 #define TARGET_MLOCKALL_MCL_CURRENT 1
 #define TARGET_MLOCKALL_MCL_FUTURE  2
 
-#endif  /* TARGET_SYSCALL_H */
+#endif /* AARCH64_TARGET_SYSCALL_H */
diff --git a/linux-user/alpha/target_syscall.h b/linux-user/alpha/target_syscall.h
index 3db4b16f6b5394edf5f33f9013a89a3ebe7e8564..b580fc5b3733c43cd1c34f89e01793bdd5706ebc 100644
--- a/linux-user/alpha/target_syscall.h
+++ b/linux-user/alpha/target_syscall.h
@@ -1,5 +1,5 @@
-#ifndef TARGET_SYSCALL_H
-#define TARGET_SYSCALL_H
+#ifndef ALPHA_TARGET_SYSCALL_H
+#define ALPHA_TARGET_SYSCALL_H
 
 /* default linux values for the selectors */
 #define __USER_DS	(1)
@@ -259,4 +259,4 @@ struct target_pt_regs {
 #define TARGET_MLOCKALL_MCL_CURRENT     0x2000
 #define TARGET_MLOCKALL_MCL_FUTURE      0x4000
 
-#endif  /* TARGET_SYSCALL_H */
+#endif /* ALPHA_TARGET_SYSCALL_H */
diff --git a/linux-user/arm/target_syscall.h b/linux-user/arm/target_syscall.h
index 11077b761bcd81170faa8a3e66d9a2b67db47364..cd021ff598cd7ae93407e8fd664f210149e76e4d 100644
--- a/linux-user/arm/target_syscall.h
+++ b/linux-user/arm/target_syscall.h
@@ -1,5 +1,5 @@
-#ifndef TARGET_SYSCALL_H
-#define TARGET_SYSCALL_H
+#ifndef ARM_TARGET_SYSCALL_H
+#define ARM_TARGET_SYSCALL_H
 
 /* this struct defines the way the registers are stored on the
    stack during a system call. */
@@ -33,4 +33,4 @@ struct target_pt_regs {
 #define TARGET_MLOCKALL_MCL_CURRENT 1
 #define TARGET_MLOCKALL_MCL_FUTURE  2
 
-#endif  /* TARGET_SYSCALL_H */
+#endif /* ARM_TARGET_SYSCALL_H */
diff --git a/linux-user/cris/target_syscall.h b/linux-user/cris/target_syscall.h
index 2957b0d6ae61feaa52136afbc2845de6e3d1c5f4..29d69009ffe8b2c6de0b91f9c954b08ec65bbfa0 100644
--- a/linux-user/cris/target_syscall.h
+++ b/linux-user/cris/target_syscall.h
@@ -1,5 +1,5 @@
-#ifndef CRIS_SYSCALL_H
-#define CRIS_SYSCALL_H 1
+#ifndef CRIS_TARGET_SYSCALL_H
+#define CRIS_TARGET_SYSCALL_H
 
 #define UNAME_MACHINE "cris"
 #define UNAME_MINIMUM_RELEASE "2.6.32"
diff --git a/linux-user/i386/target_syscall.h b/linux-user/i386/target_syscall.h
index 0ac84dc02fe0dab7396245ebefdc877104157c02..b4e895fd9c0c859030db0001b0bdeabdfa9a0ae6 100644
--- a/linux-user/i386/target_syscall.h
+++ b/linux-user/i386/target_syscall.h
@@ -1,5 +1,5 @@
-#ifndef TARGET_SYSCALL_H
-#define TARGET_SYSCALL_H
+#ifndef I386_TARGET_SYSCALL_H
+#define I386_TARGET_SYSCALL_H
 
 /* default linux values for the selectors */
 #define __USER_CS	(0x23)
@@ -154,4 +154,4 @@ struct target_vm86plus_struct {
 #define TARGET_MLOCKALL_MCL_CURRENT 1
 #define TARGET_MLOCKALL_MCL_FUTURE  2
 
-#endif  /* TARGET_SYSCALL_H */
+#endif /* I386_TARGET_SYSCALL_H */
diff --git a/linux-user/m68k/target_syscall.h b/linux-user/m68k/target_syscall.h
index 97a4cc0cbd43cb25819331d196ee1af7d8c93378..db2be4f1012657084fa64b9469ddc3535141e51f 100644
--- a/linux-user/m68k/target_syscall.h
+++ b/linux-user/m68k/target_syscall.h
@@ -1,5 +1,5 @@
-#ifndef TARGET_SYSCALL_H
-#define TARGET_SYSCALL_H
+#ifndef M68K_TARGET_SYSCALL_H
+#define M68K_TARGET_SYSCALL_H
 
 /* this struct defines the way the registers are stored on the
    stack during a system call. */
@@ -26,4 +26,4 @@ struct target_pt_regs {
 
 void do_m68k_simcall(CPUM68KState *, int);
 
-#endif  /* TARGET_SYSCALL_H */
+#endif /* M68K_TARGET_SYSCALL_H */
diff --git a/linux-user/microblaze/target_syscall.h b/linux-user/microblaze/target_syscall.h
index 3c1ed27c04a33e15e83bfe23945e40e86b7fe682..0b6980c89986f25751cc48f6adeac7b267949d0e 100644
--- a/linux-user/microblaze/target_syscall.h
+++ b/linux-user/microblaze/target_syscall.h
@@ -1,5 +1,5 @@
-#ifndef MICROBLAZE_SYSCALLS_H
-#define MICROBLAZE_SYSCALLS_H 1
+#ifndef MICROBLAZE_TARGET_SYSCALL_H
+#define MICROBLAZE_TARGET_SYSCALL_H
 
 #define UNAME_MACHINE "microblaze"
 #define UNAME_MINIMUM_RELEASE "2.6.32"
diff --git a/linux-user/mips/target_syscall.h b/linux-user/mips/target_syscall.h
index e8e305cc9c198122aa03c7315501a098fe5b03bb..2b4f39072921ca8a550d11547e65197afc47cb7c 100644
--- a/linux-user/mips/target_syscall.h
+++ b/linux-user/mips/target_syscall.h
@@ -1,5 +1,5 @@
-#ifndef TARGET_SYSCALL_H
-#define TARGET_SYSCALL_H
+#ifndef MIPS_TARGET_SYSCALL_H
+#define MIPS_TARGET_SYSCALL_H
 
 /* this struct defines the way the registers are stored on the
    stack during a system call. */
@@ -230,4 +230,4 @@ struct target_pt_regs {
 #define TARGET_MLOCKALL_MCL_CURRENT 1
 #define TARGET_MLOCKALL_MCL_FUTURE  2
 
-#endif  /* TARGET_SYSCALL_H */
+#endif /* MIPS_TARGET_SYSCALL_H */
diff --git a/linux-user/mips64/target_syscall.h b/linux-user/mips64/target_syscall.h
index 5789e8615078b903468268d480e0299f9a4795d5..8da9c1f9cc4bb2ccf505c163bba0a349e6fde803 100644
--- a/linux-user/mips64/target_syscall.h
+++ b/linux-user/mips64/target_syscall.h
@@ -1,5 +1,5 @@
-#ifndef TARGET_SYSCALL_H
-#define TARGET_SYSCALL_H
+#ifndef MIPS64_TARGET_SYSCALL_H
+#define MIPS64_TARGET_SYSCALL_H
 
 /* this struct defines the way the registers are stored on the
    stack during a system call. */
@@ -227,4 +227,4 @@ struct target_pt_regs {
 #define TARGET_MLOCKALL_MCL_CURRENT 1
 #define TARGET_MLOCKALL_MCL_FUTURE  2
 
-#endif  /* TARGET_SYSCALL_H */
+#endif /* MIPS64_TARGET_SYSCALL_H */
diff --git a/linux-user/openrisc/target_syscall.h b/linux-user/openrisc/target_syscall.h
index 19aeffc95d087dfc24e1fcfafddfb2b7c2fb06b0..9d3380f9a8de7a558582d0fccb7474bc99aced50 100644
--- a/linux-user/openrisc/target_syscall.h
+++ b/linux-user/openrisc/target_syscall.h
@@ -1,5 +1,5 @@
-#ifndef TARGET_SYSCALL_H
-#define TARGET_SYSCALL_H
+#ifndef OPENRISC_TARGET_SYSCALL_H
+#define OPENRISC_TARGET_SYSCALL_H
 
 struct target_pt_regs {
     union {
@@ -31,4 +31,4 @@ struct target_pt_regs {
 #define TARGET_MLOCKALL_MCL_CURRENT 1
 #define TARGET_MLOCKALL_MCL_FUTURE  2
 
-#endif  /* TARGET_SYSCALL_H */
+#endif /* OPENRISC_TARGET_SYSCALL_H */
diff --git a/linux-user/ppc/target_syscall.h b/linux-user/ppc/target_syscall.h
index 7ca83c228093f20f4ab1cf32d11509d215880ff3..a8662f48562d082c041f2ff5174ed86082540e7d 100644
--- a/linux-user/ppc/target_syscall.h
+++ b/linux-user/ppc/target_syscall.h
@@ -17,8 +17,8 @@
  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef TARGET_SYSCALL_H
-#define TARGET_SYSCALL_H
+#ifndef PPC_TARGET_SYSCALL_H
+#define PPC_TARGET_SYSCALL_H
 
 /* XXX: ABSOLUTELY BUGGY:
  * for now, this is quite just a cut-and-paste from i386 target...
@@ -75,4 +75,4 @@ struct target_revectored_struct {
 #define TARGET_MLOCKALL_MCL_CURRENT 0x2000
 #define TARGET_MLOCKALL_MCL_FUTURE  0x4000
 
-#endif  /* TARGET_SYSCALL_H */
+#endif /* PPC_TARGET_SYSCALL_H */
diff --git a/linux-user/s390x/target_syscall.h b/linux-user/s390x/target_syscall.h
index 02061efc780a33786f2f4f696b8c6b6c0a3f8a8d..8d4f609eaa5d8698fa03c50cd2458f0fd58f4fce 100644
--- a/linux-user/s390x/target_syscall.h
+++ b/linux-user/s390x/target_syscall.h
@@ -1,5 +1,5 @@
-#ifndef TARGET_SYSCALL_H
-#define TARGET_SYSCALL_H
+#ifndef S390X_TARGET_SYSCALL_H
+#define S390X_TARGET_SYSCALL_H
 
 /* this typedef defines how a Program Status Word looks like */
 typedef struct {
@@ -31,4 +31,4 @@ struct target_pt_regs {
 #define TARGET_MLOCKALL_MCL_CURRENT 1
 #define TARGET_MLOCKALL_MCL_FUTURE  2
 
-#endif  /* TARGET_SYSCALL_H */
+#endif /* S390X_TARGET_SYSCALL_H */
diff --git a/linux-user/sh4/target_syscall.h b/linux-user/sh4/target_syscall.h
index 9f3381bc9b73e21a8deeed5a76cc0e2a53ed7de5..78d55571246b65ccf4ffc31336a43a860037e69a 100644
--- a/linux-user/sh4/target_syscall.h
+++ b/linux-user/sh4/target_syscall.h
@@ -1,5 +1,5 @@
-#ifndef TARGET_SYSCALL_H
-#define TARGET_SYSCALL_H
+#ifndef SH4_TARGET_SYSCALL_H
+#define SH4_TARGET_SYSCALL_H
 
 struct target_pt_regs {
         unsigned long regs[16];
@@ -19,4 +19,4 @@ struct target_pt_regs {
 #define TARGET_MLOCKALL_MCL_CURRENT 1
 #define TARGET_MLOCKALL_MCL_FUTURE  2
 
-#endif  /* TARGET_SYSCALL_H */
+#endif /* SH4_TARGET_SYSCALL_H */
diff --git a/linux-user/sparc/target_syscall.h b/linux-user/sparc/target_syscall.h
index a73fa6dae14771a03b48f3b573a39593a38c2869..326f674b4e7900ea1ccef712d0b137d0e9a31e1c 100644
--- a/linux-user/sparc/target_syscall.h
+++ b/linux-user/sparc/target_syscall.h
@@ -1,5 +1,5 @@
-#ifndef TARGET_SYSCALL_H
-#define TARGET_SYSCALL_H
+#ifndef SPARC_TARGET_SYSCALL_H
+#define SPARC_TARGET_SYSCALL_H
 
 struct target_pt_regs {
 	abi_ulong psr;
@@ -22,4 +22,4 @@ struct target_pt_regs {
 #define TARGET_MLOCKALL_MCL_CURRENT 0x2000
 #define TARGET_MLOCKALL_MCL_FUTURE  0x4000
 
-#endif  /* TARGET_SYSCALL_H */
+#endif /* SPARC_TARGET_SYSCALL_H */
diff --git a/linux-user/sparc64/target_syscall.h b/linux-user/sparc64/target_syscall.h
index eb827fcac16d17b0767246a2697ffe93822b8c0b..b7e3bf82fb6bf0142d2627d544f7d252ebf731cd 100644
--- a/linux-user/sparc64/target_syscall.h
+++ b/linux-user/sparc64/target_syscall.h
@@ -1,5 +1,5 @@
-#ifndef TARGET_SYSCALL_H
-#define TARGET_SYSCALL_H
+#ifndef SPARC64_TARGET_SYSCALL_H
+#define SPARC64_TARGET_SYSCALL_H
 
 struct target_pt_regs {
 	abi_ulong u_regs[16];
@@ -23,4 +23,4 @@ struct target_pt_regs {
 #define TARGET_MLOCKALL_MCL_CURRENT 0x2000
 #define TARGET_MLOCKALL_MCL_FUTURE  0x4000
 
-#endif  /* TARGET_SYSCALL_H */
+#endif /* SPARC64_TARGET_SYSCALL_H */
diff --git a/linux-user/tilegx/target_syscall.h b/linux-user/tilegx/target_syscall.h
index a938d4e90c9e0407decc678ac3846dc6d34bc1af..d731acdafaa08cc0a896d3187fcb1b459765b8e4 100644
--- a/linux-user/tilegx/target_syscall.h
+++ b/linux-user/tilegx/target_syscall.h
@@ -1,5 +1,5 @@
-#ifndef TILEGX_SYSCALLS_H
-#define TILEGX_SYSCALLS_H
+#ifndef TILEGX_TARGET_SYSCALL_H
+#define TILEGX_TARGET_SYSCALL_H
 
 #define UNAME_MACHINE "tilegx"
 #define UNAME_MINIMUM_RELEASE "3.19"
diff --git a/linux-user/unicore32/target_syscall.h b/linux-user/unicore32/target_syscall.h
index 385a97562dc2b2c9e426e3a022152269f57c7a72..346b207700057bfd3357f0707dcf5120096dc2d4 100644
--- a/linux-user/unicore32/target_syscall.h
+++ b/linux-user/unicore32/target_syscall.h
@@ -5,8 +5,10 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
-#ifndef __UC32_SYSCALL_H__
-#define __UC32_SYSCALL_H__
+
+#ifndef UNICORE32_TARGET_SYSCALL_H
+#define UNICORE32_TARGET_SYSCALL_H
+
 struct target_pt_regs {
     abi_ulong uregs[34];
 };
@@ -57,4 +59,4 @@ struct target_pt_regs {
 #define TARGET_MLOCKALL_MCL_CURRENT 1
 #define TARGET_MLOCKALL_MCL_FUTURE  2
 
-#endif /* __UC32_SYSCALL_H__ */
+#endif /* UNICORE32_TARGET_SYSCALL_H */
diff --git a/linux-user/x86_64/target_syscall.h b/linux-user/x86_64/target_syscall.h
index feecd32d50462738ee42b8b2d333114b5feb9b0c..983fb23d9b1dd9cbf1ede9e07b04c1af41645578 100644
--- a/linux-user/x86_64/target_syscall.h
+++ b/linux-user/x86_64/target_syscall.h
@@ -1,5 +1,5 @@
-#ifndef TARGET_SYSCALL_H
-#define TARGET_SYSCALL_H
+#ifndef X86_64_TARGET_SYSCALL_H
+#define X86_64_TARGET_SYSCALL_H
 
 #define __USER_CS	(0x33)
 #define __USER_DS	(0x2B)
@@ -104,4 +104,4 @@ struct target_msqid64_ds {
 #define TARGET_MLOCKALL_MCL_CURRENT 1
 #define TARGET_MLOCKALL_MCL_FUTURE  2
 
-#endif  /* TARGET_SYSCALL_H */
+#endif /* X86_64_TARGET_SYSCALL_H */