[build] some configure fixes

configure

@@ -3037,14 +3037,14 @@ case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac
 
 for defdir in /usr/local /opt/local; do
     if test -d "$defdir/include"; then
-	CPPFLAGS="$CPPFLAGS -I$defdir/include"
+        CPPFLAGS="$CPPFLAGS -I$defdir/include"
     fi
 
     if test -d "$defdir/lib"; then
-	LDFLAGS="$LDFLAGS -L$defdir/lib"
+        LDFLAGS="$LDFLAGS -L$defdir/lib"
     fi
     if test -d "$defdir/lib64"; then
-	LDFLAGS="$LDFLAGS -L$defdir/lib64"
+        LDFLAGS="$LDFLAGS -L$defdir/lib64"
     fi
 done
 
@@ -3988,6 +3988,10 @@ fi
 
 
 
+if test x"$SQLITE3_CMD" = x""; then
+    as_fn_error $? "The sqlite3 command is required" "$LINENO" 5
+fi
+
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -6644,6 +6648,10 @@ $as_echo "#define HAVE_SQLITE3 /**/" >>confdefs.h
 
 
 
+if test x"$SQLITE3_LIBS" = x""; then
+    as_fn_error $? "The sqlite3 developement package must be installed." "$LINENO" 5
+fi
+
 case "$host_os" in
     *)
 	# AC_DEFINE([_XOPEN_SOURCE], [500], [Need pread])

configure.ac

@@ -10,14 +10,14 @@ AC_CANONICAL_HOST
 
 for defdir in /usr/local /opt/local; do
     if test -d "$defdir/include"; then
-	CPPFLAGS="$CPPFLAGS -I$defdir/include"
+        CPPFLAGS="$CPPFLAGS -I$defdir/include"
     fi
 
     if test -d "$defdir/lib"; then
-	LDFLAGS="$LDFLAGS -L$defdir/lib"
+        LDFLAGS="$LDFLAGS -L$defdir/lib"
     fi
     if test -d "$defdir/lib64"; then
-	LDFLAGS="$LDFLAGS -L$defdir/lib64"
+        LDFLAGS="$LDFLAGS -L$defdir/lib64"
     fi
 done
 
@@ -90,6 +90,10 @@ AC_PROG_MAKE_SET
 
 AC_PATH_PROG(SQLITE3_CMD, [sqlite3])
 
+if test x"$SQLITE3_CMD" = x""; then
+    AC_MSG_ERROR([The sqlite3 command is required])
+fi
+
 AC_CHECK_SIZEOF(off_t)
 AC_CHECK_SIZEOF(size_t)
 
@@ -110,6 +114,10 @@ AX_PATH_LIB_READLINE([], [AC_MSG_ERROR([readline required to build])])
 
 AX_LIB_SQLITE3("3.0.0")
 
+if test x"$SQLITE3_LIBS" = x""; then
+    AC_MSG_ERROR([The sqlite3 developement package must be installed.])
+fi
+
 case "$host_os" in
     *)
 	# AC_DEFINE([_XOPEN_SOURCE], [500], [Need pread])

src/Makefile.in

@@ -1000,7 +1000,7 @@ uninstall-am: uninstall-binPROGRAMS
 
 
 help.c: help.txt bin2c
-	./bin2c -z -c $< $@
+	./bin2c -z -c $(srcdir)/help.txt $@
 
 uncrusty:
 	(cd $(srcdir) && uncrustify -c ../lnav.cfg --replace $(SOURCES) \

test/Makefile.in

@@ -1572,7 +1572,7 @@ uninstall-am:
 
 simple-db.db: simple-db.sql
 	rm -f $@
-	$(SQLITE3_CMD) $@ < $<
+	$(SQLITE3_CMD) $@ < $(srcdir)/simple-db.sql
 
 # Tell versions [3.59,3.63) of GNU make to not export all variables.
 # Otherwise a system limit (for SysV at least) may be exceeded.