diff --git a b
index a3e9af6..0ff3dd8 100644
--- a/Makefile
+++ b/Makefile
@@ -100,8 +100,14 @@ all: prepare $(OutFile)
 .PHONY: build_info
 build_info:
-	(date '+#define bmYEAR    %y%n#define bmMONTH   %m%n#define bmDAY     %d%n#define bmHOUR    %H%n#define bmMINUTE  %M%n#define bmSECOND  %S%n#define bmTIME    Time( %y, %m, %d, %H, %M, %S )' | sed 's| 0\([[:digit:]]\)| \1|g' && \
-	echo '#define bmMACHINE "'`hostname`'"' && \
-	echo '#define bmUSER    "'`whoami`'"') > "$(UPPOUT)/build_info.h"
+	(echo '#define bmYEAR    1970' && \
+	echo '#define bmMONTH   1' && \
+	echo '#define bmDAY     1' && \
+	echo '#define bmHOUR    0' && \
+	echo '#define bmMINUTE  0' && \
+	echo '#define bmSECOND  1' && \
+	echo '#define bmTIME    Time(1970, 1, 1, 0, 0, 1)' && \
+	echo '#define bmMACHINE ""' && \
+	echo '#define bmUSER    ""') > "$(UPPOUT)/build_info.h"
 
 .PHONY: prepare
 prepare: \
index a3e9af6..0ff3dd8 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -100,8 +100,14 @@ all: prepare $(OutFile)
 .PHONY: build_info
 build_info:
-	(date '+#define bmYEAR    %y%n#define bmMONTH   %m%n#define bmDAY     %d%n#define bmHOUR    %H%n#define bmMINUTE  %M%n#define bmSECOND  %S%n#define bmTIME    Time( %y, %m, %d, %H, %M, %S )' | sed 's| 0\([[:digit:]]\)| \1|g' && \
-	echo '#define bmMACHINE "'`hostname`'"' && \
-	echo '#define bmUSER    "'`whoami`'"') > "$(UPPOUT)/build_info.h"
+	(echo '#define bmYEAR    1970' && \
+	echo '#define bmMONTH   1' && \
+	echo '#define bmDAY     1' && \
+	echo '#define bmHOUR    0' && \
+	echo '#define bmMINUTE  0' && \
+	echo '#define bmSECOND  1' && \
+	echo '#define bmTIME    Time(1970, 1, 1, 0, 0, 1)' && \
+	echo '#define bmMACHINE ""' && \
+	echo '#define bmUSER    ""') > "$(UPPOUT)/build_info.h"
 
 .PHONY: prepare
 prepare: \
--- a/umkMakefile
+++ b/umkMakefile
@@ -52,8 +52,14 @@ all: prepare $(OutFile)
 .PHONY: build_info
 build_info:
-	(date '+#define bmYEAR    %y%n#define bmMONTH   %m%n#define bmDAY     %d%n#define bmHOUR    %H%n#define bmMINUTE  %M%n#define bmSECOND  %S%n#define bmTIME    Time( %y, %m, %d, %H, %M, %S )' | sed 's| 0\([[:digit:]]\)| \1|g' && \
-	echo '#define bmMACHINE "'`hostname`'"' && \
-	echo '#define bmUSER    "'`whoami`'"') > "$(UPPOUT)/build_info.h"
+	(echo '#define bmYEAR    1970' && \
+	echo '#define bmMONTH   1' && \
+	echo '#define bmDAY     1' && \
+	echo '#define bmHOUR    0' && \
+	echo '#define bmMINUTE  0' && \
+	echo '#define bmSECOND  1' && \
+	echo '#define bmTIME    Time(1970, 1, 1, 0, 0, 1)' && \
+	echo '#define bmMACHINE ""' && \
+	echo '#define bmUSER    ""') > "$(UPPOUT)/build_info.h"
 
 .PHONY: prepare
 prepare: \
--- a/umkMakefile.in
+++ b/umkMakefile.in
@@ -52,8 +52,14 @@ all: prepare $(OutFile)
 .PHONY: build_info
 build_info:
-	(date '+#define bmYEAR    %y%n#define bmMONTH   %m%n#define bmDAY     %d%n#define bmHOUR    %H%n#define bmMINUTE  %M%n#define bmSECOND  %S%n#define bmTIME    Time( %y, %m, %d, %H, %M, %S )' | sed 's| 0\([[:digit:]]\)| \1|g' && \
-	echo '#define bmMACHINE "'`hostname`'"' && \
-	echo '#define bmUSER    "'`whoami`'"') > "$(UPPOUT)/build_info.h"
+	(echo '#define bmYEAR    1970' && \
+	echo '#define bmMONTH   1' && \
+	echo '#define bmDAY     1' && \
+	echo '#define bmHOUR    0' && \
+	echo '#define bmMINUTE  0' && \
+	echo '#define bmSECOND  1' && \
+	echo '#define bmTIME    Time(1970, 1, 1, 0, 0, 1)' && \
+	echo '#define bmMACHINE ""' && \
+	echo '#define bmUSER    ""') > "$(UPPOUT)/build_info.h"
 
 .PHONY: prepare
 prepare: \
--- a/uppsrc/ide/Builders/CppBuilder.cpp
+++ b/uppsrc/ide/Builders/CppBuilder.cpp
@@ -580,19 +580,32 @@ void CppBuilder::SaveBuildInfo(const String& package)
 	RealizePath(path);
 	FileOut info(path);
 	Time t = GetSysTime();
-	info << "#define bmYEAR   " << (int)t.year << "\r\n";
-	info << "#define bmMONTH  " << (int)t.month << "\r\n";
-	info << "#define bmDAY    " << (int)t.day << "\r\n";
-	info << "#define bmHOUR   " << (int)t.hour << "\r\n";
-	info << "#define bmMINUTE " << (int)t.minute << "\r\n";
-	info << "#define bmSECOND " << (int)t.second << "\r\n";
-	info << Format("#define bmTIME   Time(%d, %d, %d, %d, %d, %d)\r\n",
-	        (int)t.year, (int)t.month, (int)t.day, (int)t.hour, (int)t.minute, (int)t.second);
-	info << "#define bmMACHINE " << AsCString(GetComputerName()) << "\r\n";
-	info << "#define bmUSER    " << AsCString(GetUserName()) << "\r\n";
-
-	if(package == mainpackage)
-		info << Join(RepoInfo(package), "\r\n");
+	char* no_build_info = getenv("NO_BUILD_INFO");
+	if((no_build_info != NULL) && strcmp(no_build_info, "1")) {
+		info << "#define bmYEAR   " << (int)t.year << "\r\n";
+		info << "#define bmMONTH  " << (int)t.month << "\r\n";
+		info << "#define bmDAY    " << (int)t.day << "\r\n";
+		info << "#define bmHOUR   " << (int)t.hour << "\r\n";
+		info << "#define bmMINUTE " << (int)t.minute << "\r\n";
+		info << "#define bmSECOND " << (int)t.second << "\r\n";
+		info << Format("#define bmTIME   Time(%d, %d, %d, %d, %d, %d)\r\n",
+				(int)t.year, (int)t.month, (int)t.day, (int)t.hour, (int)t.minute, (int)t.second);
+		info << "#define bmMACHINE " << AsCString(GetComputerName()) << "\r\n";
+		info << "#define bmUSER    " << AsCString(GetUserName()) << "\r\n";
+
+		if(package == mainpackage)
+			info << Join(RepoInfo(package), "\r\n");
+	} else {
+		info << "#define bmYEAR   1970\r\n";
+		info << "#define bmMONTH  1\r\n";
+		info << "#define bmDAY    1\r\n";
+		info << "#define bmHOUR   0\r\n";
+		info << "#define bmMINUTE 0\r\n";
+		info << "#define bmSECOND 1\r\n";
+		info << "#define bmTIME   Time(1970, 1, 1, 0, 0, 1)\r\n";
+		info << "#define bmMACHINE \"\"\r\n";
+		info << "#define bmUSER    \"\"\r\n";
+	}
 }
 
 String CppBuilder::DefinesTargetTime(const char *sep, const String& package, const Package& pkg)